Midland Industries 38066 Brass Air Brake Adapter 1/2in

Product Description

The MIDLAND INDUSTRIES 38066 is a brass NAB female adapter designed to connect 1/2 inch OD nylon tubing to a 1/2 inch female NPT port in DOT air brake systems. The fitting uses an 11/16-20 thread form and is rated for SAE J844 Type A and B NT nylon tubing. It handles pressures up to 150 psi and operates across a temperature range of -40 to 200 degrees F. The all-brass construction provides corrosion resistance and long service life in compressed-air environments. Licensed technicians working on commercial vehicle air brake systems are the primary installers of this component.

This adapter is intended for use in DOT air brake nylon tubing assemblies on commercial trucks, trailers, and other vehicles requiring compliant air brake plumbing. It connects the nylon tubing run to a female NPT port on valves, tanks, or other air system components. The fitting is cataloged under DOT air brake nylon tubing hardware and is sold in single-unit quantities, making it suitable for service and repair applications.

Key Features

• Rated to 150 psi working pressure for air brake service
• Temperature range of -40 to 200 degrees F covers cold-climate and high-heat installations
• Compatible with SAE J844 Type A and B NT nylon tubing
• 11/16-20 thread for secure tube-end connection
• Brass construction resists corrosion in compressed-air and moisture-exposed environments
• Single-unit MOQ supports field repair and service use

Compatibility

Designed for use with SAE J844 Type A and B NT nylon tubing in DOT-compliant air brake systems on commercial vehicles.

Installation Notes

Installation should be performed by a qualified technician familiar with DOT air brake system requirements. Depressurize the air brake system completely before removing or installing any fittings. Use appropriate thread sealant on the NPT side and ensure the nylon tube is cut cleanly and fully seated before tightening. Follow applicable FMCSA and SAE J844 guidelines for air brake tubing assembly.