BRASS

Brass Tube Insert Brass Insert with Crown

These are brass tube support inserts (also called brass inserts with crown) designed for use with SAE J844 nylon tubing in air brake systems. Main Functions: Inserted into the end of nylon air brake tubing Provide internal support to prevent the tubing from collapsing or deforming when the compression fitting is tightened Ensure a secure, leak-free connection under high pressure and vibration Typical Applications: Air brake lines on trucks, trailers, buses, and commercial vehicles Cab air control systems Secondary air lines (e.g., air suspension, air horns, or other pneumatic controls) Standards Compliance: Meets DOT FMVSS 571.106 air brake specifications Compatible with SAE J246 and J1131 standards These inserts are commonly used in heavy-duty and commercial vehicle air brake systems rather than passenger cars (which typically use hydraulic brakes).