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Structural Components

Custom Medical Fittings

  • Process
    Swiss turning, CNC turning, milling
  • Material
    316L, aluminum 6061, PEEK, PPSU, polycarbonate
  • Finish
    Passivation (ASTM A967), anodizing

MedCNCParts machines medical fittings to OEM drawings for device OEMs and contract manufacturers building flowmeters, regulators and diagnostic fluidics. Every body, nut, adapter or port is made under an ISO 13485 quality system.

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Description Types Process Custom Options Tech Specs Related Products FAQs
Custom Medical Fittings Desc Image

Medical fittings machined to your drawing

We are not a distributor: standard off-the-shelf adapters and hose assemblies are not sold here. What we supply is the fitting body, nut, adapter or port your drawing defines, machined, inspected and documented under an ISO 13485 quality system, from engineering samples to repeat production. Fittings sit with our structural device components.

Made to your drawing Icon

Made to your drawing

Each fitting body, nut, adapter or port is machined to the OEM drawing; we do not stock or sell catalog adapters.

OEM owns conformance Icon

OEM owns conformance

Connector conformance to its standard is part of the OEM's design verification; we machine to the drawing's dimensions.

Documents on request Icon

Documents on request

FAI report, CMM report, CoC and material certificates are available on request, with lot traceability on each shipment.

Fittings from samples to production

We machine engineering samples, pilot builds and repeat lots. The OEM sets requirements tied to the gas or fluid, such as lead content limits and oxygen compatibility. Ports are often cut directly into fluidic manifolds for laboratory equipment rather than added as a separate fitting.

Medical fittings we machine to drawing

Fitting bodies and adapters

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Fitting bodies and adapters
  • Features: stepped bores, internal and external threads, wrench flats, O-ring grooves
  • Process: Swiss turning for slender bodies and long bores; CNC turning with milled flats for larger bodies
  • Material: 316L stainless steel, passivated per ASTM A967 when called for

Threaded port fittings

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Threaded port fittings
  • Features: port threads, sealing faces, cross-drilled passages
  • Threads: tapped, thread-milled or single-point turned to ASME B1.1 or ASME B1.20.1, as the drawing calls out
  • Inspection: cross-hole intersections checked on the first article; sealing faces finished to the drawing roughness

Connector nuts and sleeves

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Connector nuts and sleeves
  • Features: threads, knurls, indexing features, retaining grooves
  • Process: CNC turning for nuts, with milling for flats and cross-holes
  • Material: 316L stainless steel, or PEEK and PPSU for chemically resistant and insulating fittings

Mounting fittings for equipment

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Mounting fittings for equipment
  • Features: bulkhead threads, flanges, locating diameters
  • Process: CNC turning for flanged fittings, with milling for off-axis ports
  • Material: aluminum 6061 for lightweight equipment fittings, anodized as specified

Sensor ports

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Sensor ports
  • Features: threaded or press-fit seats for sensor housings and probes
  • Inspection: port positions checked dimensionally, with CMM reports on request where required
  • Material: the grade on your drawing, with its material certificate on request

Machining and inspection of medical fittings

  • Materials
  • Machining
  • Finishing
  • Inspection
  • Materials

    Metals and polymers

    316L stainless steel serves fitting bodies, adapters, nuts and metal fluid paths, passivated per ASTM A967 when called for. Aluminum 6061 suits lightweight equipment fittings and port blocks, anodized as specified. PEEK and PPSU give chemically resistant, insulating fittings; polycarbonate keeps fluidic fittings transparent, with clarity agreed on a sample.

    We machine the grade on the drawing and supply its material certificate on request.

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  • Machining

    Swiss and CNC turning

    Most fittings are rotational, so turning does most of the work. Swiss turning of small fittings handles slender bodies, small diameters and long bores in one cycle. Medical CNC turning covers larger bodies, nuts and flanged fittings, with milling for flats, cross-holes and off-axis ports.

    Threads are tapped, thread-milled or single-point turned to ASME B1.1 or ASME B1.20.1, as the drawing calls out.

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  • Finishing

    Sealing faces and finish

    Sealing surfaces are finished to the roughness on the drawing, and bores are deburred. 316L fittings are passivated per ASTM A967 when called for; aluminum 6061 fittings are anodized as specified.

    For polycarbonate fluidic fittings, the clarity is agreed on a sample before production.

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  • Inspection

    Inspection and records

    A first article inspection (FAI) checks the full drawing, including cross-hole intersections, with the FAI report on request. Threads are gauged GO / NO-GO per the agreed inspection plan; bores, sealing faces and port positions are checked dimensionally, with CMM reports on request where required.

    Each shipment carries lot traceability, with a Certificate of Conformance (CoC) and material certificates on request.

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Surface Finishing
Materials
  • Electropolishing
    Electropolishing medical metals produces smooth, clean, corrosion-resistant surfaces, removing burrs and impurities to ensure biocompatibility, sterility, and reliable device performance.
  • Passivation
    MedCNCParts provides medical CNC parts with precision passivation, removing contaminants and restoring stainless steel’s oxide layer for corrosion-resistant, implant-ready components.
  • Electroplating
    Precision electroplating for medical devices strengthens surfaces, maintains biocompatibility, and ensures clinical-grade, ISO-compliant, traceable finishes for implants and surgical instrumentation.
  • Laser Marking
    MedCNCParts provides precise, compliant laser marking and UDI on medical components, ensuring traceability, regulatory adherence, and long-lasting surface quality.
  • Anodizing
    Anodizing components for medical use strengthens surface protection, cleanliness, and biocompatibility, ensuring durable, traceable, and implantable-grade finishes for precision-machined parts.
  • Titanium Coloring
    With MedCNCParts’ titanium coloring, medical devices gain validated biocompatibility, precise differentiation, and assured compliance with stringent implantable certification standards.
  • Powder Coating
    Biocompatible powder coating creates corrosion-resistant, uniform finishes on medical parts, maintaining micro-precision, cleanliness, and validation-ready surfaces for surgical devices.
  • Titanium
    MedCNCParts offers precise, fast-turnaround CNC machining titanium with implant-grade quality, ultra-clean operations, and reliable small-batch medical part production.
  • Acrylic
    MedCNCParts’ machining services deliver precision-shaped components with refined finish, durability, and consistent optical performance for healthcare use.
  • Stainless Steel
    MedCNCParts offers advanced CNC machining for medical components, producing stainless steel parts for surgical and implantable applications to exacting ISO tolerances with fast turnaround.
  • Copper
    MedCNCParts’ CNC machining Copper ensures ISO 13485-certified cleanliness, precise tolerances, and consistent quality across surgical, diagnostic, and implantable copper components.
  • Aluminum
    MedCNCParts focus on traceability, process compliance, and rapid-response production makes us a trusted partner.
  • PEEK
    MedCNCParts machines PEEK components using validated processes, micro-precision, and complete inspection for advanced medical devices.
  • Polycarbonate
    MedCNCParts ensures consistent quality and fast turnaround for complex, small-batch medical applications.

Tech Specs

Custom Medical Fittings Specs Image
Part types Fitting bodies, adapters, threaded port fittings, connector nuts, sleeves, sensor ports
Materials 316L stainless steel, aluminum 6061, PEEK, PPSU, polycarbonate
Process Swiss turning, CNC turning, milling
Threads ASME B1.1 or ASME B1.20.1, per drawing
Finishes Passivation (ASTM A967), anodizing
Inspection FAI, GO / NO-GO thread gauging, CMM checks
Documentation FAI report, CMM report, CoC, material certificates on request
Quantities Samples, pilot builds, repeat production

Medical Fittings FAQs

FAQs

Send your fitting drawing with the material, quantities and documents you need.

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MedCNCParts manufactures components to customer specifications; it does not design or market medical devices.

What are the different types of medical gas connectors available?

The main families are DISS threaded connectors (CGA V-5), quick-connect systems in several industry styles, NIST connectors (ISO 18082) and pin-index cylinder connections (CGA V-1). Each one is gas-specific, so that one gas cannot be connected to another's outlet.

Do you sell standard medical gas adapters?

No. We machine fitting components to OEM drawings and are not a distributor of standard adapters or hose assemblies.

Which materials do you machine for fittings?

Typically 316L stainless steel, aluminum, PEEK, PPSU and polycarbonate, in the grade on your drawing.

Can you clean fittings for oxygen service?

Cleaning to the OEM's oxygen-service specification, such as CGA G-4.1 or ASTM G93, is confirmed per quote.

Do you test thread and leak performance?

Thread gauging with GO / NO-GO gauges is part of inspection. Leak testing is done only when specified on the order and confirmed with the quote.

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