Midland Industries 38043 Brass Insert 5/8 in Tube Od

Product Description

The MIDLAND INDUSTRIES 38043 is a brass insert fitting designed for use with SAE J844 Type A and B NT nylon tubing in DOT air brake systems. The insert seats inside the tubing end to provide structural support and a leak-resistant seal at the tube-to-fitting interface. It features a 5/8 inch tube OD connection and a 13/16-18 thread specification. Rated to 150 psi and suitable for operating temperatures from -40 to 200 degrees F, this fitting is built for the demands of commercial vehicle air brake plumbing. Installation is typically performed by diesel mechanics, fleet maintenance technicians, and pneumatic systems specialists.

The 38043 insert is used in DOT-regulated air brake nylon tubing assemblies on commercial trucks, trailers, and other heavy-duty vehicles. It is cataloged under the NAB Brass Insert category within DOT air brake nylon tubing hardware. The fitting is intended for applications where nylon tubing requires internal reinforcement at connection points to maintain pressure integrity and resist pull-out forces.

Key Features

• 5/8 inch tube OD connection for SAE J844 Type A and B NT nylon tubing
• 13/16-18 thread specification for secure engagement
• 150 psi pressure rating suitable for air brake service
• Operating temperature range of -40 to 200 degrees F
• Brass construction for corrosion resistance in pneumatic environments
• Compact profile: approximately 0.5 inches in length and 1 inch in width

Compatibility

Designed for use with SAE J844 Type A and B NT nylon tubing in DOT air brake plumbing assemblies.

Installation Notes

Installation is performed by qualified technicians working on commercial vehicle air brake systems. Always depressurize the air brake system completely before disconnecting or assembling any tubing or fittings. Ensure the nylon tubing end is cut cleanly and squarely before seating the insert to maintain a proper seal. Follow applicable DOT and FMVSS regulations governing air brake system repairs and component replacement.