Coilhose Pneumatics 590 Pneumatic Coupler 3/8 Fnpt

Product Description

The COILHOSE PNEUMATICS 590 is a threaded pneumatic hose coupler designed for compressed air tool connections in shop and automotive service environments. Built from nickel-plated steel, it features a 3/8 inch FNPT (female national pipe thread) connection and a 3/8 inch body diameter. The coupler conforms to the Tru-Flate Automotive interchange standard, making it compatible with a widely used class of pneumatic fittings in the automotive and light industrial trades. It carries a maximum working pressure rating of 300 psi and an operating temperature range from -40 degrees F to 250 degrees F. Licensed HVAC techs, mechanics, and general tradespeople install this type of coupler when building or servicing compressed air distribution lines and tool connections.

This coupler is suited for automotive service bays, general shop air systems, and light industrial compressed air setups. It is a standard replacement or add-on fitting used wherever Tru-Flate Automotive interchange couplers are specified. The threaded connection type allows direct installation into manifolds, hose assemblies, air tool inlets, and inline fittings. The nickel-plated steel construction holds up to repeated connect-disconnect cycles in working shop conditions.

Key Features

• Tru-Flate Automotive interchange standard for broad cross-compatibility with matching plugs
• 3/8 inch FNPT threaded connection for direct pipe-thread installation
• Nickel-plated steel construction for corrosion resistance and durability
• 300 psi maximum working pressure rated for typical shop air systems
• Wide operating temperature range: -40 degrees F to 250 degrees F
• 3/8 inch body diameter with compact form factor

Compatibility

Designed for use with Tru-Flate Automotive interchange pneumatic plugs and hose assemblies using 3/8 inch FNPT threaded connections in compressed air systems.

Installation Notes

Install by a qualified mechanic or tradesperson using appropriate pipe wrenches or open-end wrenches rated for the fitting size. Depressurize the air supply line completely before installing or removing any pneumatic fitting. Apply thread sealant appropriate for compressed air service to the FNPT threads before assembly. Do not exceed the rated working pressure of 300 psi on the connected system.