The Brass Air Brake Male Connector 3/8" Tube x 1/4" Pipe is designed for use in air brake systems that comply with DOT FVSS571.106 specifications. This connector features a 3/8" outer diameter for nylon tubing and a 1/4" pipe fitting, ensuring a secure and leak-free connection. Constructed from high-quality brass, it provides excellent durability and resistance to corrosion, making it ideal for demanding industrial and automotive applications. Each fitting is marked with DOT for compliance in critical air brake installations.