# Machine Specialty & Manufacturing, Inc.

This MFR.ID profile was supplied, reviewed, and approved by Machine Specialty & Manufacturing, Inc.. Originally approved on 8/19/2026; last updated 9/13/2026. Capability data is manufacturer-approved for public sourcing and RFQ use.

## Profile Links

- Canonical profile: https://mfr.io/msmmfg
- JSON data: https://mfr.io/msmmfg.json

## Company Overview

Machine Specialty & Manufacturing, Inc. is a privately owned manufacturer in Youngsville, Louisiana producing API flanges, ASME B16.9 weld fittings, weldments, and specialty fabricated components. The company supports welding and fabrication, CRA/CRO cladding and overlay, non-destructive testing, hydrostatic testing, stress relief/PWHT, repair, recertification, and assembly from its 350,000 sq ft facility on 20 acres. With more than 75 CNC machining centers and integrated QC, MSM serves demanding oil and gas applications that require responsive turnaround and custom-built metal parts.

## Quick Reference

- Processes: API Flanges, Butt-Weld Pipe Fittings, Oilfield Pressure Components, Metal Fabrication & Welding, Inspection & Quality Control, Industrial Repair & Rebuild Services
- Lead Time: 3-4 weeks
- Location: Youngsville, LA 70592
- Employees: 51-200
- Revenue: $25M-$50M
- Founded: 1982
- Contact: info@machine-spec.com - +1 800-256-1292
- Verified: Manufacturer Approved

## Capabilities

### API Flanges

For wellhead and pressure-control assemblies, MSM builds API 6A flanges across 6B and 6BX pressure classes with the forging, heat treatment, machining, and testing discipline buyers expect on critical connections. The product family covers blind, instrument, spacer, threaded, and weld neck configurations plus adapter-style specials for sour-service and subsea work where leakage, downtime, or connection misfit is unacceptable.

- Process: API Flanges
- Highlights: 6B coverage from 2,000 to 5,000 psi and 6BX coverage up to 20,000 psi., Standard blind, instrument, spacer, threaded, and weld neck geometry backed by swivel, studded, and hub-style specials., Material path addresses general service, sour service, and corrosion-resistant subsea requirements., API Monogram licensed manufacturing with quality control carried from material selection through final test.
- Subprocesses: Weld Neck Flanges, Blind Flanges, Hub Blind Flanges, Threaded Flanges, Instrument Flanges, Spacer Flanges
- Specifications:
  - Applicable Product Specifications: API Spec 6A - Identify the applicable API 6A edition, PSL, material class, temperature class, and any Monogram marking requirement for each line item.
  - API Flange Interface Series: 6B, 6BX - Confirm the required interface series with nominal bore, working pressure, seal-ring details, and mating equipment because 6B and 6BX interfaces are not interchangeable.
  - Nominal Bore Size Range: 1.8125-26.75 in - Use this continuous roll-up for broad size filtering only; select a discrete bore from the supported-size list and confirm its series, pressure class, flange type, and material during quoting.
  - Supported Nominal Bore Sizes: 1 13/16 in, 2 1/16 in, 2 9/16 in, 3 1/8 in, 3 1/16 in, 4 1/16 in, 5 1/8 in, 7 1/16 in, 9 in, 11 in, 13 5/8 in, 16 3/4 in, 18 3/4 in, 20 3/4 in, 21 1/4 in, 26 3/4 in - Confirm every requested bore against interface series, pressure class, flange type, material, and mating connection because the listed dimensions are not available in every combination.
  - Rated Working Pressure Range: 2000-20000 psi - Use this continuous roll-up for broad pressure filtering only; select a discrete working-pressure class and confirm its compatible series, bore, and flange configuration.
  - Rated Working Pressure Classes: 2,000 psi, 3,000 psi, 5,000 psi, 10,000 psi, 15,000 psi, 20,000 psi - Confirm the selected working-pressure class with the required interface series, nominal bore, flange configuration, and service condition.
  - API Flange Series / Type Coverage: 6B Blind Flanges, 6B Instrument Flanges, 6B Spacer Flanges, 6B Threaded Flanges, 6B Weld Neck Flanges, 6BX Blind Flanges, 6BX Instrument Flanges, 6BX Spacer Flanges, 6BX Threaded Flanges, 6BX Weld Neck Flanges - Use the series/type combination to verify face geometry, bolting, gasket, bore, and mating-equipment compatibility before ordering.
  - Ring Groove Types Supported: R, BX - Confirm the ring-groove family and gasket number against the exact interface series, bore, and working-pressure class.
  - Gasket Numbers Supported: R-23, R-24, R-26, R-27, R-31, R-35, R-37, R-39, R-41, R-44, R-45, R-46, R-49, R-50, R-53, R-54, R-57, R-65, R-66, R-73, R-74, BX-151, BX-152, BX-153, BX-154, BX-155, BX-156, BX-157, BX-158, BX-159, BX-160, BX-162, BX-163, BX-164, BX-165, BX-166, BX-167, BX-168, BX-169 - Confirm the gasket number against both mating interfaces and the exact series, bore, pressure class, and groove dimensions.
  - Sour Service Standard Compliance: NACE MR0175 / ISO 15156 - Specify the applicable NACE MR0175 / ISO 15156 material limits, temperature class, and H2S exposure for the requested service; compliance is material- and condition-specific.
  - Specialty Configurations: Swivel Flanges, Double Studded Adapter Flanges, Single Studded Adapter Flanges, Hub Type Flanges, Custom high-pressure flange solutions - These options matter when a standard flange shape cannot solve alignment, stack height, or connection conversion.
  - Service Environment Coverage: General service, Sour service to NACE MR0175 / ISO 15156, Severe subsea environments requiring corrosion-resistant alloys - Environment coverage helps buyers separate routine service from sour-service and subsea corrosion exposure.
  - Integrated Manufacturing Steps: Material selection, Forging, Heat treatment, Precision machining, Final testing - Control of forging through final test reduces handoff risk on pressure-containing hardware.

### ASME B16.9 Weld Fittings

When line class, wall thickness, and metallurgy are too demanding for commodity fittings, MSM positions this family around heavy-wall ASME B16.9 components and 4130 block-style high-pressure variants. Buyers can source standard elbows, tees, reducers, caps, and stub ends alongside reinforced branch fittings and custom metallurgy support for pipeline, wellsite, and process piping programs.

- Process: Butt-Weld Pipe Fittings
- Highlights: ASME B16.9 buttwelding fittings positioned for code-governed piping and pressure service., Catalog size range from 1/2 in to 60 in with wall thicknesses reaching Schedule XXS., Material coverage spans carbon steel, stainless steel, alloy steel, duplex stainless, and nickel-alloy families., Strong fit for upstream, midstream, downstream, and petrochemical piping programs., 4130 75K block-style tees, crosses, and bends for higher-pressure branch geometry.
- Subprocesses: Weld Tees, Cushion Tees, Cushion Crosses, Weld Crosses, Concentric Reducers, Eccentric Reducers
- Specifications:
  - Applicable Product Standards: ASME B16.9 - Use the project piping code and material specification with B16.9 when confirming pressure-temperature suitability.
  - ASME B16.9 Nominal Pipe Size Range: 0.5-48 in - Within this standards-based range, confirm fitting geometry, wall schedule, material grade, and end preparation together.
  - Overall Weld Fitting Nominal Pipe Size Range: 0.5-60 in - For sizes above NPS 48, identify the governing dimensional standard or approved project drawing in the request for quote.
  - Maximum Pipe Schedule: XXS - Schedule is size-dependent; include the required nominal wall thickness at every end when requesting reducers or unequal branches.
  - Fitting Types Offered: Elbows and returns, Weld tees, Cushion tees, Weld crosses, Cushion crosses, Concentric reducers, Eccentric reducers, Weld caps, Stub ends, Weld laterals - Use the geometry-specific fields below to define angle, radius, and reducing or branch arrangement.
  - Elbow And Return Angles: 45 degrees, 90 degrees, 180-degree return - Pair the required angle with the centerline radius and end-to-end dimensional basis used in the piping layout.
  - Bend Radius Options: Short radius (SR), Long radius (LR), 3R - Radius affects installation envelope, flow loss, erosion exposure, and pigging clearance.
  - Reducer Configurations: Concentric, Eccentric - Select eccentric geometry when the piping layout must maintain top- or bottom-of-pipe alignment.
  - Branch And Reducing Configurations: Tee: reducing on outlet, Tee: reducing on run, Tee: reducing on one run and outlet, Tee: bullhead, Cross: reducing on one outlet, Cross: reducing on both outlets, Cross: reducing on one run and outlet, Cross: reducing on one run and both outlets, Lateral: reducing on branch, Lateral: reducing on one run, Lateral: reducing on one run and branch, True Y, Side outlet tee, Double branch elbow, Side outlet elbow - State each run, outlet, and branch size on the RFQ; fittings in the same nominal family can use different reduction layouts.
  - Construction Forms Offered: Factory-made wrought buttwelding fittings, 4130 block-style fittings, Seamless weld laterals - Construction form affects the applicable material specification, examination scope, and dimensional review, so identify it explicitly on the RFQ.
  - Material Families Supported: Carbon steel, Stainless steel, Alloy steel, Inconel, Hastelloy, Duplex stainless steels - Use family-level coverage for initial screening; the RFQ should identify the governing material specification and grade.
  - Published Material Specifications And Grades: 4130, 4140, ASTM A105, ASTM A234 WPB / WPC, ASTM A350 LF2, ASTM A420 WPL6, Y42, Y52, Y60 - Confirm the complete grade designation, heat treatment, impact requirements, and supplementary requirements in the purchase specification.
  - 4130 75K Block Style Configurations: Butt weld block-style cross, Butt weld block-style cushion cross, Butt weld block-style tee, Butt weld block-style cushion tee, Butt weld block-style 90-degree fitting, Butt weld block-style 45-degree fitting - Treat 75K as MSM's program designation rather than a universal fitting pressure class; confirm design pressure, temperature, and material properties for the application.
  - Material Traceability And Documentation: Full material traceability, Certified test reports, Comprehensive project documentation - Identify required MTR content, inspection records, and document-review hold points with the purchase order.
  - Standard / Custom Supply Model: Stocked sizes and materials, Custom and unique builds - Availability depends on the exact size, wall, material, and geometry; flag schedule-critical combinations early.

### Oilfield Pressure Components

Beyond standard flanges and buttweld fittings, MSM sells custom pressure hardware for outlet changes, adapter transitions, hub connections, and multi-port assemblies in API 6A and 16A service. The family is aimed at buyers who need spools, blocks, manifolds, or specialty connection pieces built around a specific pressure stack rather than pulled from a narrow commodity catalog.

- Process: Oilfield Pressure Components
- Highlights: Separate specialty product family for API 6A and API 16A pressure equipment and connection hardware., Recurring lines include adapter spools, instrument blocks, API hubs, double-studded adapters, sand traps, and manifolds., Adapter coverage spans API-to-ANSI, flange x 1502, threaded line adapters, and union-style transitions., Gallery examples include diverter spools, API / ASME spools, API 16A hubs, and a named 15,000 psi plug catcher., Useful when a buyer needs custom pressure geometry that sits outside routine flange and fitting catalogs.
- Subprocesses: Adapter Spools, Instrument Blocks, API Hubs, Double Studded Adapters, Sand Traps, High-Pressure Manifolds
- Specifications:
  - Applicable Product Standards: API Spec 6A, API Spec 16A, API Spec 16C - Assign the governing standard and product category to each line item; a mixed pressure-control assembly can contain components governed by different API specifications.
  - API 6A Product Specification Levels Supported: PSL 1, PSL 2, PSL 3 - PSL coverage applies to MSM's credentialed API 6A scope; confirm the required PSL for each component and service condition.
  - Core Pressure Component Types: Instrument blocks, Adapter spools, Line adapters, API hubs, Double-studded adapters, Lifting blind flanges, Segmented flanges, Sand traps, High-pressure manifolds - Treat each pressure-containing body as a separate rated line item so its bore, pressure, material, and connections are explicit.
  - API 6A Credentialed Product Scope: Adapter spools, Spacer spools, Blind flanges, Test flanges, Tees, Crosses, Threaded connectors - Use this scope when API Monogram marking is required; confirm the exact product category and PSL on the order.
  - API 16A Credentialed Product Scope: Adapters, Drilling spools, Hub and clamp end connectors - Confirm the API 16A product category, bore, working pressure, and connection designation together for each component.
  - API 16C Credentialed Product Scope: Choke and kill manifold buffer chambers - For a complete choke-and-kill assembly, identify which supplied components require API 16C Monogram scope and which are integrated purchased equipment.
  - Connection And Adapter Interfaces: API-to-ANSI transitions, API hub connections, Flange x 1502 connections, Integral 1502 union connections, Threaded line adapters, Double-studded adapters, Flowline unions, Studded connections - Identify both mating interfaces, bore, working pressure, sealing face or groove, and orientation for every transition.
  - Spool Configurations: Adapter spools, Diverter spools, Spacer spools, Drilling spools, Pumping spools, API / ASME spools, Hub adapter spools, Integral spools, Seamless spools - Specify bore, face-to-face length, end connection on each side, and outlet orientation for the required spool.
  - Multi Outlet And Branch Configurations: 45-degree studded blocks, Studded crosses, Studded tees, Multiple-outlet blocks, Studded x flange 90s, Mud crosses, Goat heads, Buffalo heads, Weld tees, Weld crosses - Provide outlet count, clocking, centerline offsets, and each outlet specification to prevent field fit-up conflicts.
  - Turnkey Manifold Configurations: Drilling manifolds, Choke and kill manifolds, 1502 flow manifolds, Gas injection manifolds - Define included valves, instrumentation, controls, skid, testing, and documentation boundary for turnkey supply.
  - Other Specialty Components: Blast joints, Plug catchers, Spectacle blinds, Spacer / bleed rings, Screen flanges, Buffer tanks, Suction adapters, Riser flanges, Compact ball valve bodies - For erosion, solids-handling, isolation, or lifting functions, state the intended duty and whether the item is pressure-containing.
  - Named Size And Pressure Examples: 4 1/16 in integral spool - 10,000 psi, Fracking plug catcher - 15,000 psi - These are configuration-specific examples; establish a new component's rating from its standard, bore, connections, materials, temperature class, and design validation.
  - Highest Named Pressure Example: 15000 psi - Use this value for preliminary supplier screening only; it is not a blanket working pressure for every component in the family.
  - Construction And Assembly Forms: Machined blocks and adapters, Integral spools, Seamless spools, Welded flowline assemblies, Turnkey skid-mounted manifolds - Construction form affects weld qualification, heat treatment, examination, pressure testing, and documentation requirements.
  - Published Material And Overlay Examples: 4130 low-alloy steel, Stainless steel, Stainless steel overlay, Super duplex stainless steel - Select solid alloy versus overlay from the wetted-service requirements and identify the base material, overlay alloy, thickness, and acceptance criteria.
  - Standard / Custom Supply Model: Custom individual pressure components, Turnkey manifold assemblies - Use individual-component supply when system integration remains with the buyer; use turnkey supply when MSM owns the agreed assembly, test, and document package.

### Welding & Fabrication Services

For pressure-containing assemblies that need more than machining alone, MSM combines welding, fabrication, and overlay work into one route for spools, adapters, manifolds, vessels, and repair-critical hardware. The service is strongest where alloy selection, weld procedure control, and post-weld downstream work all have to stay coordinated under API, ASME, NACE, and DNV-driven requirements.

- Process: Metal Fabrication & Welding
- Highlights: Full-service welding cell aimed at high-pressure oilfield, manifold, and pressure-vessel work., Base-material coverage includes 4130, L80, P1 groups, F22, SA-707, API 2H Grade 50, common pressure-vessel steels, 316 stainless, and duplex 2205., Alloy 625 and 316 overlay work available across multiple low-alloy and pressure-containing base materials., Scope includes spools, API adapters, 4130 piping, ASME pressure vessels, manifold assemblies, valve cladding, and critical weld repairs., Equipment set includes 6 CNC Hotwire GTAW machines, 2 submerged arc welders, and 3 high-deposition GMAW-spray manipulators.
- Subprocesses: Large Weldment Fabrication / Assembly, Welding & Joining, TIG (GTAW) Welding, MIG (GMAW) Welding, Submerged Arc Welding (SAW), Stress Relieving
- Specifications:
  - Fabrication And Welding Scope: High-pressure spools, API adapters, 4130 piping, ASME pressure vessels, High-pressure manifold assemblies, Offshore skids, Critical weld repairs - State whether MSM is responsible for design, fabrication only, assembly, or a complete tested package; that boundary controls code documentation and acceptance responsibility.
  - Welding Processes Supported: Mechanized gas metal arc welding (GMAW), High-deposition GMAW spray, Automated pulsed gas tungsten arc welding (GTAW-P), Manual gas tungsten arc welding (GTAW), CNC hot-wire gas tungsten arc welding (GTAW), Shielded metal arc welding (SMAW), Submerged arc welding (SAW) - Select the production process through an approved WPS for the joint, base metal, thickness, position, service, and required mechanical properties.
  - Applicable Codes And Service Requirements: API Spec 6A design criteria for 4130 work, ASME Boiler and Pressure Vessel Code (BPVC), DNV-OS-E101, NACE MR0175 - Identify the governing edition, construction section or division, product scope, and service conditions instead of citing a standards family alone.
  - Welding Procedure And Welder Qualification: Certified procedures and qualified welders for applicable ASME and API work - Request WPS, PQR, and personnel-qualification coverage for the required process, material group, thickness or diameter, position, and toughness requirements.
  - Published Base Material Specifications And Grades: AISI 4130, L80, F22 (2 1/4 Cr), ASME SA-707, API Spec 2H Grade 50, ASME SA-36, ASME SA-105, ASME SA-106, ASME SA-350, ASME SA-487, ASME SA-572, ASME SA-516, 316 stainless steel, 2205 duplex stainless steel - Confirm the complete specification, grade or class, product form, heat treatment, and toughness requirements because family-level designations are not complete purchase specifications.
  - Published ASME P Number Coverage: P-No. 1 Groups 1 and 2, P-No. 8 (316 stainless steel), P-No. 10H (2205 duplex stainless steel) - P-Number grouping supports procedure qualification but does not replace confirmation of the exact base material and all applicable essential variables.
  - Corrosion Resistant Overlay Alloys: Alloy 625, 316 stainless steel - Specify the required deposited chemistry, ferrite where applicable, dilution control, minimum finished thickness, and surface acceptance criteria.
  - Published Overlay Base Material Pairings: Alloy 625 on AISI 4130, Alloy 625 on F22, Alloy 625 on ASME P-No. 1 Groups 1 and 2, 316 stainless steel on AISI 4130, 316 stainless steel on ASME P-No. 1, Alloy 625 on ASME SA-487, Alloy 625 on ASME SA-707 - Use a listed pairing as a sourcing starting point; approve the applicable WPS and metallurgical acceptance requirements for the actual component.
  - Overlay Locations And Applications: Internal surfaces, External surfaces, Ring grooves, Valves, Flanges - Provide an overlay map with access restrictions, finished thickness, machining allowance, dilution limits, and required examination for each surface.
  - Welding And Cladding Equipment: 6 CNC hot-wire GTAW machines, 2 submerged arc welders, 3 high-deposition GMAW-spray manipulators - Fleet counts do not define part fit; confirm component envelope, bore access, fixturing, positioner capacity, and current scheduling availability.
  - Post Weld Heat Treatment Availability: In-house; 3 PWHT ovens - Provide the required heating rate, soak temperature and duration, cooling rate, thermocouple layout, and furnace-survey requirements with the order.
  - Available Weld Inspection And NDE Methods: Visual testing (VT), Liquid penetrant testing (PT), Magnetic particle testing (MT), Ultrasonic testing (UT), Radiographic testing (RT), Positive material identification (PMI), Hardness testing - Specify method, examination stage and extent, personnel qualification, technique, and acceptance criteria because no single method covers every weld discontinuity.
  - Integrated In House Services: Post-weld heat treatment / stress relief, Non-destructive examination, Hydrostatic testing, Post-fabrication machining, Assembly, Equipment repair - Define which operations are included in MSM's scope and the inspection or approval hold points between welding, heat treatment, machining, examination, and testing.
  - Maximum In House Hydrostatic Test Pressure: 30000 psi - This is an available downstream test ceiling, not a weldment rating; establish the actual test pressure from the component design code, MAWP, and approved test procedure.
  - Representative Connection And Geometry Builds: API weld tees, API adapter flanges, API x ASME adapter flanges, API diverter spools, 90-degree flange x 1502 adapter spools, Spools with side outlets, API / ASME spool weldments - Supply drawings that define each connection, bore transition, outlet clocking, face-to-face dimension, and required post-weld machining datum.
  - Named Fabricated Product Pressure Examples: API sand trap - 5,000 psi, API sand trap - 15,000 psi - These are product-specific examples; qualify a new weldment against its own design, materials, connections, heat treatment, examination, and pressure-test requirements.
  - Highest Named Fabricated Product Pressure: 15000 psi - Use this value for preliminary experience screening only; it is not a universal working-pressure limit for MSM's welding and fabrication service.
  - Project Supply Model: Welding-only work, Cladding / overlay-only work, Custom fabricated assemblies, Turnkey pressure assemblies - Define design authority, supplied materials, purchased components, final assembly, testing, code documentation, and release responsibility at quotation.

### Testing & Pressure Integrity Services

Testing and pressure-integrity work at MSM combines in-house NDT and hydrostatic validation so buyers can verify material condition, weld soundness, and pressure containment without sending hardware through a disconnected outside lab chain. The service is best suited to critical valves, piping, spools, and vessels where documentation, fast feedback, and repair follow-up matter as much as the test itself.

- Process: Inspection & Quality Control
- Highlights: In-house NDT team includes two full-time ASNT Level II technicians., Method coverage spans UT, MPI, LPT, RT, PMI, VT, and hardness testing., Hydrostatic testing capacity reaches 30,000 psi for pressure-containing equipment., Testing bays are set up for valves, pipelines, pressure vessels, and adapter spools., API 6A and API 16A pressure-test work can be paired with documentation, leak location, repair, and recertification support.
- Subprocesses: Non-Destructive Testing (NDT), Ultrasonic Testing, Magnetic Particle Testing, Liquid Penetrant Testing, Radiographic Testing, Visual Testing, Metal Hardness Testing, Pressure / Leak Testing
- Specifications:
  - Inspection Stages Supported: Incoming inspection, In-process inspection, Final inspection - Assign each examination to a production stage before work begins so required surfaces remain accessible and any repair can occur before final acceptance.
  - NDT And Material Verification Methods: Ultrasonic testing (UT), Magnetic particle testing (MT), Liquid penetrant testing (PT), Radiographic testing (RT), Positive material identification (PMI), Visual testing (VT), Hardness testing - Select methods from the material, geometry, expected discontinuity orientation, required coverage, and governing acceptance criteria.
  - Published Inspection And Verification Functions: Internal and volumetric discontinuity detection, Surface-breaking discontinuity detection, Near-surface discontinuity detection in ferromagnetic materials, Alloy and chemistry verification, Hardness and heat-treatment verification, Visual condition and workmanship assessment - Define the characteristic being verified and its pass/fail rule; a method name alone does not establish adequate examination coverage.
  - Published Materials Inspected: Carbon steel, Stainless steel, Specialty alloys - Confirm material compatibility with the chosen method, including ferromagnetism, surface condition, geometry, thickness, and required reference standards.
  - NDT Personnel Qualification Level: ASNT Level II - Confirm method-specific certification, the applicable employer written practice or certification program, current vision records, and continuity before release.
  - Full Time Level II Technician Count: 2 technicians - Treat the published headcount as a capacity indicator and confirm qualified coverage for the required methods and project schedule.
  - Test Facilities: In-house NDT lab, Dedicated hydrostatic test bays - Confirm the part envelope, weight, lifting plan, connection adapters, exclusion zone, and utilities before shipping test hardware.
  - Applicable Pressure Test Standards: API Spec 6A, API Spec 16A - Identify the product category, governing edition, test type, pressure, duration, sequence, and acceptance criteria for each line item.
  - Supported Pressure Equipment Types: Valves, Pipeline sections, Pressure vessels, Adapter spools - Provide rated connections, internal volume, trapped-pressure hazards, support points, and the component's allowable test condition with the RFQ.
  - Hydrostatic Test Method And Medium: Pressurization with a non-compressible liquid, typically water - Specify fluid chemistry, material compatibility, cleanliness, temperature, fill and vent points, drying, and disposal requirements.
  - Maximum Hydrostatic Test Pressure: 30000 psi - This is the published facility ceiling, not a component rating; derive the actual test pressure from the governing standard, design rating, and approved procedure.
  - Pressure Test Objectives: Pressure-strength verification, Leak-tightness verification, Leak detection and location - Define required pressure stages, stabilization and hold times, allowable pressure change or leakage, and the disposition rule for any indication.
  - Test Equipment Calibration: Scheduled calibration maintained for testing equipment - Request current calibration status, traceability, measurement range, accuracy or uncertainty, and instrument identification in the final test record.
  - Inspection And Test Documentation: NDT inspection reports and certifications, Hydrostatic test procedure and parameters, Test results and findings, Leak-location findings, Traceable customer report - Define required part identifiers, personnel and equipment IDs, calibration status, acceptance criteria, raw data or charts, approvals, and record-retention period.
  - Post Test Follow Up: Leak identification, Welding or fabrication repair support, Recertification support - Set authorization and approval hold points before repair, then define the examination and pressure-test scope required to release the repaired item.
  - Service Delivery Model: One-time NDT inspection, Periodic NDT inspection, Standalone hydrostatic testing, Integrated manufacture and test, Integrated repair, test, and recertification - Define whether MSM owns inspection planning, test procedure development, repair disposition, final acceptance, or only execution of buyer-approved instructions.

### Repair & Recertification Services

Repair and recertification at MSM is built for customer-owned pressure hardware that needs to be stripped, inspected, rebuilt, tested, and released through one controlled shop route. The value is strongest when sealing surfaces, clad areas, weld repairs, and post-repair verification all have to stay coordinated to get a field asset back into service quickly.

- Process: Industrial Repair & Rebuild Services
- Highlights: Focused on damaged, worn, or outdated customer-owned pressure equipment., Workflow runs from blasting and inspection through weld repair, overlay, testing, coating, and recertification support., Inconel 625 and 316 stainless overlay options are available when sealing and corrosion surfaces need rebuild work., Backed by on-site CNC machining, quality control, welding, and pressure-test capability., One-campus execution helps compress turnaround compared with a multi-vendor repair route.
- Subprocesses: Welding Repair & Modification, Dimensional Inspection, Abrasive Blasting, Functional Testing Service, Coating Processes
- Specifications:
  - Accepted Intake Condition: Damaged, worn, or outdated customer-owned pressure equipment - Provide the equipment identity, original rating and configuration, service history, known damage, prior repairs, and available drawings or records at intake.
  - Initial Disposition Scope: Repair-needs assessment and turnaround planning - Agree on inspection authority, repair-versus-replace criteria, quotation assumptions, and approval hold points before irreversible material removal begins.
  - Surface Preparation: Abrasive blasting to base metal - Define masking, permitted abrasive media, cleanliness and profile requirements, and protection of sealing surfaces, threads, nameplates, and traceability marks.
  - Incoming Inspection Methods: Visual testing (VT), Magnetic particle testing (MT), Liquid penetrant testing (PT), Dimensional inspection - Specify examination extent and acceptance criteria after cleaning so the repair scope is based on documented damage rather than surface appearance alone.
  - Sealing Surface Repair Preparation: Skim or rough-out sealing surfaces for weld repair - Define the machining datum, allowable material removal, minimum remaining section, build-up allowance, and final geometry before cutting begins.
  - Repair Welding Scope: Pressure-containing weld repair, Weld build-up of worn or damaged areas, Overlay and cladding restoration - Use an approved repair procedure that addresses defect removal, joint preparation, base and filler metallurgy, heat input, intermediate inspection, and final machining.
  - Repair Welding Qualification Basis: Standard procedures and experienced welders following applicable ASME and API requirements - Confirm the governing code or approved repair data and the applicable WPS, PQR, and welder qualification range for the actual material, thickness, process, and position.
  - Repair Overlay And Cladding Alloys: Alloy 625, 316 stainless steel - Provide an overlay map with deposited-chemistry, dilution, minimum finished thickness, machining allowance, and surface-examination requirements.
  - In House Supporting Processes: CNC machining, Welding and fabrication, CRA / CRO overlay, Non-destructive examination, PWHT / stress relief, Hydrostatic testing, Coating - Define the sequence and approval hold points between machining, welding, heat treatment, inspection, testing, and finishing so later work does not invalidate earlier acceptance.
  - Post Repair NDT Methods: Visual testing (VT), Magnetic particle testing (MT), Liquid penetrant testing (PT), Ultrasonic testing (UT), Radiographic testing (RT) - Select surface and volumetric methods, timing, coverage, technique, personnel qualification, and acceptance criteria from the governing repair plan.
  - Post Repair Dimensional And Functional Verification: Dimensional inspection, Drift testing, Function testing - Provide final dimensions and tolerances, drift size and acceptance, operating sequence, loads or travel, and the required witnessed or recorded results.
  - Maximum Integrated Hydrostatic Test Pressure: 30000 psi - This is the published facility ceiling, not the repaired item's rating; establish the actual post-repair test pressure from the governing standard and approved procedure.
  - Final Coating Availability: Coating available after repair and testing - Specify coating system, surface preparation, dry-film thickness, cure requirements, color, masking, marking preservation, and inspection criteria.
  - Repair And Recertification Records: Repair scope and disposition, Welding parameters and procedure references, Inspection and NDT findings, Dimensional and functional test results, Hydrostatic test results, Repair deviations and approvals, Traceable final record - Define required asset and material identifiers, before-and-after condition records, personnel and equipment IDs, acceptance signatures, release documents, and retention period.
  - Recertification Scope: Recertification support - Confirm the governing product standard or OEM data, the party authorized to approve return to service, and any required license, mark, nameplate, or release form.
  - Service Delivery Model: In-shop repair of customer-owned equipment, Integrated repair, inspection, test, coating, and recertification support - Define owner-supplied data and parts, MSM's engineering and execution responsibility, third-party witnessing, final acceptance, and freight or preservation boundary.

## Certifications

- ISO 9001:2015 (Type: Certification; Authority: International Organization for Standardization (ISO); Status: Needs info; Scope: MSM markets an ISO 9001:2015-certified quality management system covering the design, manufacture, repair, and service of precision machined parts, wellhead and Christmas tree equipment, drill through equipment, choke and kill systems, and welding and non-destructive testing services.; URL: https://www.iso.org/iso-9001-quality-management.html)
- API Spec 16C Monogram License (Type: License; Authority: American Petroleum Institute (API); Status: Active; Scope: MSM markets an API Spec 16C Monogram license scope for choke and kill manifold buffer chamber equipment.; URL: https://www.api.org/-/media/Files/Certification/Monogram-APIQR/0_API-Monogram-APIQR/LIFs/API_16C_Licensing_Information_Form_20240716.pdf)
- API Spec 6A Monogram License (Type: License; Authority: American Petroleum Institute (API); Status: Active; Scope: MSM markets an API Spec 6A Monogram license scope covering adapter and spacer spools, blind and test flanges, tees and crosses, and threaded connectors at PSL 1, PSL 2, and PSL 3.; URL: https://www.api.org/-/media/Files/Certification/Monogram-APIQR/0_API-Monogram-APIQR/LIFs/API_6A_Licensing_Information_Form_20230821.pdf)
- API Spec Q1 Registration (Type: Registration; Authority: American Petroleum Institute (API); Status: Needs info; Scope: MSM markets API Spec Q1 quality management system registration covering the design, manufacture, repair, and service of precision machined parts, wellhead and Christmas Tree equipment, drill through equipment, choke and kill systems, and welding and non-destructive testing services.; URL: https://www.api.org/products-and-services/api-monogram-and-apiqr)
- API Spec 16A Monogram License (Type: License; Authority: American Petroleum Institute (API); Status: Active; Scope: MSM markets an API Spec 16A Monogram license scope covering adapters, drilling spools, and hub and clamp connectors.; Issue date: 2025-10-27; Expiration date: 2028-08-27; URL: https://www.api.org/-/media/Files/Certification/Monogram-APIQR/0_API-Monogram-APIQR/LIFs/API_16A_Licensing_Information_Form_20230821.pdf)

## Industries Served

- Oil, Gas & Petrochemical: Machine Specialty & Manufacturing, Inc. manufactures API flanges, weldments, fittings, and specialty products, including industrial pipeline fittings, with products and welding procedures aligned to API and ASME industry standards for oil and gas applications.
- Oil and Gas Pipelines: Machine Specialty & Manufacturing supplies ASME B16.9 heavy-wall weld fittings and custom pipeline components for upstream production, midstream transportation, downstream refining, and petrochemical processing, with material, documentation, and delivery support for high-pressure, high-temperature, and corrosive service.

## Facilities

### Machine Specialty & Manufacturing, Inc. Headquarters

MSM's Youngsville headquarters is a 350,000-square-foot industrial campus on 20 acres featuring more than 75 CNC machining centers, in-house NDT, stress-relieving furnaces, welding, repair and assembly, and hydrostatic testing. The consolidated site supports faster internal flow and turnaround.

- Type: manufacturing_facility
- Headquarters: Yes
- Email: info@machine-spec.com
- Phone: +1 800-256-1292
- Address: 215 Rousseau Road, Youngsville, LA 70592, United States

## Verification Status

- Business Entity: Verified 5/13/2026
- Technical Capabilities: Verified 8/19/2026
- Locations & Facilities: Verified 5/13/2026
- Reviews & Ratings: Not yet verified
- MFR.ID Created: 5/13/2026
- Last Updated: 9/13/2026