Transportation Fittings | McMaster-Carr

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REACH

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334 Products

About Measuring Fittings

Measure the threaded ends of your fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Pipe, Tubing, Hose, and Fittings

Low-Temperature/High-Pressure D.O.T.
Push-to-Connect Tube Fittings for Air

Connect high-pressure brake lines with fittings that won’t crack in frigid temperatures. Often used on commercial trucks and trailers, these fittings meet Department of Transportation FMVSS 571 safety standards.

Low-Temperature D.O.T.
Push-to-Connect Tube Fittings for Air

Connect air brake lines with fittings that won’t crack in sub-zero temperatures. They meet Department of Transportation FMVSS 571 safety standards, so they’re often used in commercial trucks and trailers.

Color-Coded Identification Rings
for Low-Temperature D.O.T.
Push-to-Connect Tube Fittings for Air

Color-code your lines by snapping these rings over the release ring on low-temperature D.O.T. push-to-connect tube fittings.

D.O.T. Brass Compression Tube Fittings for Air

Safe for use in your air brake line, these fittings meet Department of Transportation FMVSS 571 standards. They’ve been tested for thermal cycling, vibration, and burst pressure, so put them to work right away.