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The MIDLAND INDUSTRIES 39713 is a stainless steel battery nut designed for use in air brake system assemblies. This fitting features a 3/8-inch female pipe thread (FPT) connection and is built to withstand the vibration, moisture, and corrosion exposure common in commercial vehicle and heavy-duty pneumatic applications. Weighing approximately 0.04 pounds, the 39713 is a compact, durable hardware component used by fleet mechanics and pneumatic system technicians during air brake cable and plug assembly installations.
This battery nut is suited for air brake accessory installations where a secure, corrosion-resistant threaded connection is required. It falls within the cables, plugs, and sockets category of air brake components, making it appropriate for use in commercial trucking, trailer, and fleet vehicle air brake circuits. Technicians working on pneumatic line terminations and connection hardware will find this nut compatible with standard 3/8-inch FPT fittings in those systems.
Designed as an OEM-style replacement or service component for air brake accessory assemblies using 3/8-inch FPT threaded connections in commercial vehicle pneumatic systems.
Installation should be performed by a qualified fleet mechanic or pneumatic systems technician familiar with air brake regulations and component requirements. Depressurize the air brake system completely before removing or replacing any fittings or hardware. Use appropriate thread sealant rated for pneumatic service and ensure connections are tightened to eliminate air leaks without over-stressing the fitting. Follow applicable Federal Motor Carrier Safety Administration (FMCSA) and vehicle manufacturer guidelines for air brake system service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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