Parker 21SFIN10MXN Industrial Interchange Plug 1/8 Fnpt Brass

Product Description

The PARKER 21SFIN10MXN is a brass industrial interchange plug coupling designed for pneumatic systems. It connects air lines and tools using a 1/8 inch female NPT (FNPT) threaded connection, providing a secure, leak-resistant seal in compressed air applications. Rated to 300 psi maximum working pressure, this plug is built to handle demanding shop and field environments. The brass body offers corrosion resistance and durability in dry compressed air service. It is installed by HVAC technicians, pneumatic system technicians, and industrial maintenance personnel where industrial interchange couplings are the specified standard.

This plug coupling fits residential, commercial, and light industrial pneumatic setups where industrial interchange-style connections are standard. The 1/8 inch FNPT thread accommodates common air line fittings and tool inlets. With a rated temperature range of -4 degrees F to 212 degrees F, this fitting suits most indoor and outdoor compressed air applications encountered in trade service work.

Key Features

• Industrial interchange plug design compatible with standard industrial interchange couplers
• 1/8 inch FNPT threaded connection for easy installation into female-threaded ports
• 300 psi maximum working pressure for reliable pneumatic service
• Brass body construction for corrosion resistance in dry compressed air systems
• Operating temperature range of -4 degrees F to 212 degrees F
• 9/16 inch body diameter with 1/2 inch hex for wrench installation

Compatibility

Designed as an OEM-style replacement or direct-install plug coupling for industrial interchange pneumatic coupling systems using 1/8 inch FNPT threaded connections.

Installation Notes

Installation is performed by qualified pneumatic system technicians or industrial maintenance personnel. Depressurize and bleed the air line completely before removing or installing any pneumatic fitting. Apply thread sealant appropriate for pneumatic service to the FNPT threads before tightening; do not overtighten, as brass threads can be damaged by excessive torque. Verify that system pressure does not exceed the 300 psi rated working pressure of this fitting.