Brass Push>Connect Air Brake Tube Fitting, 0.38 Inch Tube OD To 1/8-27 Male NPT, 90 deg Elbow

Air brake systems on commercial vehicles typically operate well within that range, and 150 psi covers the pressure demands those systems see in normal service. The fitting also handles down to vacuum on the low end, so it works across the full pressure swing an air brake circuit goes through. The ethylene propylene O-ring is what does the sealing work, and that material holds up well in air brake environments specifically.

This Eaton Aeroquip fitting is manufactured from CA360 brass, so it's designed for durability and resistance to moderate vibration, which makes it suitable for air brake systems on commercial vehicles. It also meets D.O.T. FMVSS 571.106 and SAE J1131 standards.

It matches a 0.38 inch tube OD on the push to connect side and a 1/8-27 male NPT thread on the other side, in a 90 degree elbow shape.