Brass Push>Connect Air Brake Tube Fitting, 0.38 Inch Tube OD To 1/8-27 Male NPT, 45 deg Elbow

For most air brake applications, 150 psi is right in the working range. Air brake systems typically operate well below that ceiling, so this fitting covers what you'd expect to see in normal service. It also meets D.O.T. FMVSS 571.106 and SAE J1131 requirements, which are the recognized performance standards for air brake fittings, so it's not just a pressure number on paper.