Midland Industries HE68-66 Brass Hose Mpt Adapter 3/8 in

Product Description

The MIDLAND INDUSTRIES HE68-66 is a brass hose-to-male pipe thread adapter designed for air brake system plumbing. It connects a 3/8 inch hose end to a 3/8 inch MPT port using a 31/32-20 thread specification. Rated to 125 psi and built from solid brass, this fitting handles the full temperature range common in commercial vehicle and heavy-duty pneumatic applications, from -400 degrees F to 1200 degrees F. The compact body measures approximately 2.3 inches in length and 1.05 inches in width, weighing 0.23 pounds. Licensed plumbers, fleet mechanics, and air brake technicians use this fitting for secure, leak-resistant connections in air line assemblies.

This adapter is suited for air brake plumbing on commercial trucks, trailers, and heavy equipment where a hose end must terminate at a male pipe thread port. It falls within the MAF/USA Brass Fittings air brake hose end connector product line, making it appropriate for original-equipment replacement or new-build pneumatic circuit work. Its brass construction resists corrosion in wet or contaminated air supply environments typical of heavy-duty mobile equipment and stationary compressed air systems.

Key Features

• 3/8 inch hose to 3/8 inch MPT connection for air brake plumbing
• 31/32-20 thread specification for proper hose end engagement
• 125 psi pressure rating suitable for standard air brake system operating pressures
• Brass construction provides corrosion resistance and reliable sealing
• Wide temperature tolerance from -400 degrees F to 1200 degrees F
• Compact form factor at 2.3 inches length for tight installation spaces

Compatibility

Designed as an OEM-style replacement or new-installation hose end connector for air brake systems requiring a 3/8 inch hose to 3/8 inch MPT brass adapter within the MAF/USA Brass Fittings air brake product line.

Installation Notes

Installation should be performed by a qualified air brake technician or licensed mechanic in accordance with FMCSA air brake system service requirements. Depressurize the air system fully before removing or installing any fittings. Apply appropriate thread sealant to the MPT threads per the system manufacturer guidelines, and inspect the hose end seating surface before assembly to ensure a leak-free connection. Pressure-test the repaired circuit before returning the vehicle or equipment to service.