Midland Industries 38075 Brass Nab Male Adapter 1/4 X 3/8

Product Description

The MIDLAND INDUSTRIES 38075 is a brass NAB male adapter designed to connect 1/4 inch OD nylon tubing to a 3/8 inch male NPTF port. The fitting features a 7/16-24 thread and is rated for pressures up to 150 psi across a temperature range of -40 to 200 degrees F. It is built for use in DOT air brake systems where reliable, leak-resistant connections between nylon tubing and threaded ports are required. Licensed technicians and fleet mechanics working on commercial vehicle air brake circuits will find this fitting a direct-fit component for standard service and repair work.

This adapter is suited for DOT air brake plumbing applications using SAE J844 Type A and Type B NT nylon tubing. It provides a secure transition from a compression-style tube OD connection to a tapered male NPTF thread, making it appropriate for chassis-mounted brake system components, compressor outlet fittings, and related pneumatic circuit connections found in commercial trucks, trailers, and heavy equipment.

Key Features

• Connects 1/4 inch OD nylon tubing to 3/8 inch male NPTF threaded ports
• Brass construction for corrosion resistance and durability in pneumatic service
• Rated to 150 psi working pressure
• Operating temperature range of -40 to 200 degrees F
• Compatible with SAE J844 Type A and Type B NT nylon tubing
• 7/16-24 thread form for positive sealing engagement

Compatibility

Designed for use with SAE J844 Type A and Type B NT nylon tubing in DOT air brake systems. Connects to 3/8 inch male NPTF threaded ports.

Installation Notes

Installation should be performed by a qualified technician familiar with DOT air brake system regulations. Depressurize the air brake system completely before removing or installing any fittings. NPTF threads rely on thread-form interference for sealing; inspect threads before installation and apply appropriate thread sealant per system requirements. Verify tubing is cut cleanly and seated fully before torquing to avoid leaks or fitting damage.