14mm Tube Adapters | McMaster-Carr

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For Tube Hardness

Durometer 85A to Durometer 100A

Durometer 95A to Durometer 45D

Durometer 95A to Durometer 60D

Durometer 95A to Durometer 65D

Rockwell 15T 1 to Rockwell 15T 60

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102 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Yor-Lok Fittings for Stainless Steel Tubing

Use these fittings at pressures up to 9,700 psi. Also known as instrumentation fittings, they are made to tight tolerances for use in high-precision applications. They are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings.

Solder-Connect Fittings for Copper Tubing

Solder these fittings to tubing for a permanent, leak-tight connection. They are also known as sweat fittings.

Compression Fittings for Copper Tubing

Create a strong connection without heating, flaring, or soldering.

Nickel-Plated Brass Compression
Fittings for Copper Tubing

With a nickel-plated finish, these compression fittings resist corrosion better than plain brass fittings.

Sleeves for 37° Flared Fittings for Steel Tubing

Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on steel tubing that is flared to 37°.

High-Pressure Compression Fittings for Steel Tubing

Thicker walls make these fittings—sometimes called flareless or bite fittings—withstand about twice as much pressure as standard compression fittings, so they’re good for hydraulic power applications.

Tube Fittings for Plastic and Rubber Tubing—Air and Water

Push-to-Connect Tube Fittings for Air

Universal-Thread Nickel-Plated Brass
Push-to-Connect Tube Fittings for Air and Water

Made of nickel-plated brass, these tube fittings resist corrosion better than plain brass fittings. The male threaded ends connect to NPT, NPTF, BSPP, BSPT, and other universal threads, so you don’t have to bother matching exact thread types.

Nickel-Plated Brass Push-to-Connect
Tube Fittings for Air

Made of nickel-plated brass, these fittings have better corrosion resistance than unplated brass fittings.

Universal-Thread Push-to-Connect
Tube Fittings for Air and Water

Make lightweight connections without the hassle of matching the exact thread type—these fittings connect to NPT, NPTF, BSPP, BSPT, and other universal threads.

High-Temperature Brass Push-to-Connect
Tube Fittings for Air and Water

Withstanding up to 300° F, these fittings have the highest temperature rating of all our brass push-to-connect tube fittings for air and water.

Brass Compression Tube Fittings for Air and Water

A single sleeve (ferrule) compresses the tubing as you tighten the nut on these fittings, creating a strong seal. They are brass for good corrosion resistance.

Tube Supports for Brass Compression
Tube Fittings for Air and Water

Tube supports slip inside tubing to prevent the walls from collapsing.