3/8 Pipe Size Fittings | McMaster-Carr

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System of Measurement

Fitting Type

Reducing Adapter

Material

Stainless Steel

Thread Type

Shape

Double 90° Elbow

Gender

Fitting Connection

O-Ring Face Seal

Push to Connect

Quick Disconnect

Socket-Connect Union

For Use With

Organic Solvents

Pharmaceuticals

Acetic Acid (White Vinegar)

Pipe Material

Stainless Steel

Connects To

Maximum Pressure @ Temperature

1,800 psi @ 0° F

2,000 psi @ 50° F

14.5 psi @ 70° F

15 psi @ 70° F

25 psi @ 70° F

30 psi @ 70° F

125 psi @ 70° F

145 psi @ 70° F

150 psi @ 70° F

180 psi @ 70° F

200 psi @ 70° F

230 psi @ 70° F

235 psi @ 70° F

300 psi @ 70° F

600 psi @ 70° F

Flange Material

Stainless Steel

Pipe Schedule

Length

Pressure Class

Body Shape

Threading

Threaded on Both Ends

Threaded on One End

Tube OD

Fitting Material

Stainless Steel

Thread Size

Export Control Classification Number (ECCN)

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Tube Material

Stainless Steel

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5,971 Products

Fluid Handling

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 Plugs

Insert into the ends of pipe to keep out dirt and debris

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

Rotary Unions

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

Pipe Flanges

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

Pipe Collars

Clamp pipe passing through floors and walls

Tube Fittings

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

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Hose Fittings

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

Hose End Caps

Cover the ends of hose to keep out dirt and debris

Hose Nozzle Swivels

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

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

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Pressure-Relief Valves

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

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

Oil Fittings

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

Building and Machinery Hardware

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Electrical

Conduit Locknuts

Conduit Locknuts

Secure threaded conduit fittings to knockouts in electrical boxes

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

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