Parker 21SFAN10MXN Industrial Interchange Brass Plug

Product Description

The PARKER 21SFAN10MXN is a brass industrial interchange pneumatic plug fitting designed for compressed air and pneumatic tool applications. It connects via a 1/8 inch male NPT (MNPT) threaded entry and features a 1/2 inch body diameter with a 0.44 inch hex. Rated to 300 psi maximum working pressure and suited for temperatures ranging from -4 degrees F to 212 degrees F, this plug is built for reliable, repeatable connections in shop and field environments. HVAC technicians, plumbers, and industrial maintenance pros use this style of fitting to quickly connect and disconnect pneumatic lines on compressors, tools, and control systems.

This fitting is intended for pneumatic systems using industrial interchange-style couplings, which are among the most widely used coupler standards in North American trade shops and mechanical rooms. The MNPT thread makes it compatible with standard pipe-threaded ports on compressors, manifolds, regulators, and pneumatic tools. It is well suited for residential and light commercial mechanical applications where compressed air lines require frequent connect and disconnect cycles without line depressurization.

Key Features

• Industrial interchange coupler standard for broad compatibility across pneumatic tooling
• 1/8 inch MNPT thread for direct connection to standard pipe-threaded ports
• 300 psi maximum working pressure for typical shop compressor operating ranges
• Operating temperature range of -4 degrees F to 212 degrees F
• Brass construction for corrosion resistance and durability in compressed air service
• Compact 1/2 inch body diameter with 0.44 inch hex for wrench access in tight spaces

Compatibility

Designed as an OEM-style replacement or service fitting for pneumatic systems using industrial interchange-standard couplings with 1/8 inch MNPT threaded connections.

Installation Notes

Installation should be performed by a qualified technician familiar with pneumatic systems and compressed air safety practices. Depressurize and lock out the air supply before installing or removing any fitting. Apply thread sealant tape or pipe thread compound to the MNPT threads per standard practice, and tighten using an appropriately sized wrench on the hex flat — do not overtighten brass fittings. Verify the system does not exceed the 300 psi rated working pressure after pressurizing.