NPT Connectors | McMaster-Carr

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System of Measurement

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Material

Stainless Steel

Fitting Type

Expansion Joint

Reducing Adapter

Gender

Fitting Connection

Connects To

For Use With

Abrasive Materials

Medical Gas Blend

Organic Solvents

Pharmaceuticals

Tube OD

Length

Pipe Schedule

Maximum Pressure @ Temperature

110 psi @ -350° F

200 psi @ -350° F

1,800 psi @ 0° F

2,000 psi @ 50° F

150 psi @ 65° F

14.5 psi @ 70° F

15 psi @ 70° F

25 psi @ 70° F

40 psi @ 70° F

50 psi @ 70° F

60 psi @ 70° F

85 psi @ 70° F

90 psi @ 70° F

Pipe Material

Stainless Steel

Threading

Threaded on Both Ends

Threaded on One End

Flange Material

Stainless Steel

Tube Material

Stainless Steel

Thread Size

Pressure Class

Color

RoHS

Compliant with Exemptions

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

Hose ID

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27,334 Products

Fluid Handling

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Pipe Nipples and Pipe

Pipe Nipples and Pipe

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Rotary Unions

Transfer air, water, oil, and steam from supply lines to continuously revolving drums and rollers

Expansion Joints

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Hose

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Hose Nozzle Swivels

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

Junction Blocks

Junction Blocks

Organize and separate multiple lines in a pipe system; air and fluid flow through the threaded holes

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

On-Off Valves

Start and stop flow through a line

Thermocouple and RTD Fittings

Thermocouple and RTD Fittings

Alter probe immersion depth or adapt unthreaded connections for use with threaded tanks and heads

Thermocouple and RTD Mounts

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

Thermocouple Connectors

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Flow Sights

Visually confirm flow and inspect liquid color and clarity

Electrical

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

Conduit Bodies

Access wiring to pull, splice, or redirect it

Conduit-to-Conduit Connectors

Conduit-to-Conduit Connectors

Join pieces of conduit

Conduit

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Conduit Locknuts

Conduit Locknuts

Secure threaded conduit fittings to knockouts in electrical boxes

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

Electrical Sockets

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

Electrical Receptacles

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

Grease Fittings

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

Coolant Dispenser Hose and Fittings

Coolant Dispenser Hose and Fittings

Snap together and position to deliver coolant, oil, water, or air in any direction

Coolant Nozzles

Coolant Nozzles

Dispense coolant onto workpieces or tools directly from a tank

Coolant Hose and Nozzle Adapters

Coolant Hose and Nozzle Adapters

Connect threaded coolant hose and nozzles to coolant supply ports on equipment such as CNC machines

Oil Fittings

Install in engine blocks and other machinery to pour in oil while keeping dust out

Containers, Storage, and Furniture

Drum-Plug Adapters

Drum-Plug Adapters

Screw into plastic drum openings to replace threads that can become damaged with frequent use

Drum Vents

Prevent drum failure by releasing pressure and vacuum buildup

Drum Plugs

Seal drum lid openings

Drum-Plug Caps

Access inside drums to fill them

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Building and Machinery Hardware

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)