NPT Connectors | McMaster-Carr

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System of Measurement

Pipe Size

Material

Compressed Non-Asbestos Synthetic Fiber

Gender

Fitting Type

Expansion Joint

Reducing Adapter

Fitting Connection

O-Ring Face Seal

Push to Connect

Tube OD

For Use With

Abrasive Materials

Medical Gas Blend

Organic Solvents

Pharmaceuticals

Connects To

Length

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

30 psi @ 70° F

40 psi @ 70° F

50 psi @ 70° F

60 psi @ 70° F

85 psi @ 70° F

Pipe Schedule

Pipe Material

Stainless Steel

OD

0.125" to 0.188"

Tube Material

Stainless Steel

Number of Poles

Threading

Threaded on Both Ends

Threaded on One End

Thread Size

Flange Material

Stainless Steel

RoHS

Compliant with Exemptions

Color

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

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28,892 Products

Most Likely Products

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

Electrical Receptacles

Electrical Receptacles

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

Electrical Plugs

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

All Results

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

Pipe Bleed Rings

Pipe Bleed Rings

Access inside a pipe line to vent pressure, drain liquid, and take samples

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

Propane Tank Valves

Propane Tank Valves

Start and stop the flow of propane from a tank

Float Valve Bodies

Float Valve Bodies

Pair with floats and rods to create float valves that meet your needs

Valve Union Fittings

Valve Union Fittings

Mating parts join valves to a line for quick connection and removal

Flow-Adjustment Valves

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids 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 Connectors

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

Thermocouple and RTD Connection Heads

Thermocouple and RTD Connection Heads

Seal out dust and moisture and allow access to thermocouple and RTD sensor connections

Thermocouple and RTD Mounts

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

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

Electrical Receptacles

Electrical Receptacles

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

Electrical Plugs

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

Electrical Sockets

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

Electrical Cords

Electrical Cords

Connect equipment and devices to a power supply

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

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

Building and Machinery Hardware

Positioning Arms

Positioning Arms

Mount and position tools, small electronics, and displays

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

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

Grease Fitting Manifolds

Grease Fitting Manifolds

Lubricate multiple points with the same amount and type of grease using one grease fitting

Grease Fitting Repair Tools

Grease Fitting Repair Tools

Remove and repair broken or clogged grease fittings and re-tap threaded holes

Grease Guns

Manually inject lubrication through grease fittings on equipment and machinery

Grease Gun Tips

Grease Gun Tips

Attach to grease gun nozzles and direct a stream of lubricant into grease fittings on machinery

Grease Gun Tip Adapters

Grease Gun Tip Adapters

Quickly switch between standard, button-head, and flush-style grease fittings

Grease Gun Nozzles

Grease Gun Nozzles

Replace nozzles on grease guns

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 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

Coolant Nozzles

Coolant Nozzles

Dispense coolant onto workpieces or tools directly from a tank

Oil Fittings

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

Oil Brushes

Connect to oil dispensers to brush lubricant onto chain, gears, and conveyors

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 Faucets

Control the flow of liquid from drums, tanks, carboys, and other containers

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

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