Brass Push>Connect Air Brake Tube Fitting, 0.25 Inch Tube OD To 1/8-27 Male NPT, Straight

EP O-rings and CA360 brass construction allow the fitting to operate safely in temperatures ranging from -40 to 200 degrees Fahrenheit. The working pressure limit maxes out at 150 psi, and it also supports vacuum applications.

It takes 0.25 inch tube OD on the push to connect side, and the male pipe thread is 1/8-27 NPT on the other end in a straight configuration.

For air brake systems running at typical operating pressures, 150 psi is right in the range you'd expect this fitting to handle. It also covers vacuum on the low end, so the full spectrum from vacuum up to 150 psi is what you're working with. It meets D.O.T. FMVSS 571.106 and SAE J1131 standards, which are the certifications specifically required for air brake applications, so it's built to those system demands.

You’re looking at a push to connect end sized for 0.25 inch tube OD, and the other end is 1/8-27 male NPT in a straight configuration, so it matches that tube-to-port combo.