3/8 Pipe Size Connectors | McMaster-Carr

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System of Measurement

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

Shape

Double 90° Elbow

Material

Stainless Steel

Gender

Fitting Type

Reducing Adapter

Tube OD

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

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

400 psi @ 70° F

600 psi @ 70° F

1,000 psi @ 70° F

1,500 psi @ 70° F

Length

OD

0.125" to 0.188"

0.188" to 0.25"

0.25" to 0.312"

Tube Material

Stainless Steel

Thread Size

Hose ID

Pipe Material

Stainless Steel

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Maximum Temperature

Less than 100° F

100° F to 249° F

250° F to 499° F

500° F to 999° F

1,000° F or greater

Pipe Schedule

Color

Tube Stem OD

How can we improve?

6,168 Products

Fluid Handling

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

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube End Plugs

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

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

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

Hose End Caps

Cover the ends of hose to keep out dirt and debris

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

Float Valve Bodies

Float Valve Bodies

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

Propane Tank Valves

Propane Tank Valves

Start and stop the flow of propane from a tank

Thermocouple and RTD Fittings

Thermocouple and RTD Fittings

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

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

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

Conduit and Conduit Fittings

Conduit and Conduit Fittings

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

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Lubricating

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

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 Guns

Manually inject lubrication through grease fittings on equipment and machinery

Oil Fittings

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

Material Handling

Mounts for Vacuum Cups and Lifters

Mounts for Vacuum Cups and Lifters

Mount vacuum cups or vacuum lifters to surfaces

Beam Clamps

Secure lines of pipe and duct, overhead equipment, and lighting fixtures to beam flanges

Building and Machinery Hardware

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

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

Grommets

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

Positioning Arms

Positioning Arms

Mount and position tools, small electronics, and displays

Power Transmission

Shaft Collar Adapters

Shaft Collar Adapters

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

Compressed Air Filter/Regulator/Lubricator Manifolds

Compressed Air Filter/Regulator/Lubricator Manifolds

Distribute compressed air to multiple locations from a single source

Lighting

Lamp Pipe

Connect lamp components and conceal wires when building or repairing lamps

Measuring and Inspecting

Test Lead Clips

Test Lead Clips

For hands-free testing, create a temporary yet secure electrical connection

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