3/8 Pipe Size Couplings | McMaster-Carr

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System of Measurement

Fitting Type

Reducing Adapter

Material

Stainless Steel

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

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)

Acetic Acid (White Vinegar) (5% Concentration)

Acetic Acid (White Vinegar) (10% Concentration)

Acetic Acid (White Vinegar) (20% Concentration)

Connects To

Length

Pipe Material

Stainless Steel

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

1,000 psi @ 70° F

1,500 psi @ 70° F

2,000 psi @ 70° F

Tube OD

Pipe Schedule

Flange Material

Stainless Steel

Pressure Class

Threading

Threaded on Both Ends

Threaded on One End

Body Shape

Quick-Disconnect Component

Plug and Socket Set

OD

Coupling Size

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

How can we improve?

5,586 Products

Fluid Handling

Pipe and Pipe Fittings

Pipe and Pipe Fittings

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

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

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

Orifice Valves

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

Float Valve Bodies

Float Valve Bodies

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

Flow-Adjustment Valves

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

On-Off Valves

Start and stop flow through a line

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 Gun Filler Pump Dispensing Tips

Grease Gun Filler Pump Dispensing Tips

Switch out dispensing tips on grease gun filler pumps

Electrical

Conduit and Conduit Fittings

Conduit and Conduit Fittings

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

Power Transmission

Shaft Collar Adapters

Shaft Collar Adapters

Sized specifically to adapt standard shaft collars to pipe, creating a tight fit

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