Parker A4FC2-MG Push-to-connect Connector 1/4 in Od

Product Description

The PARKER A4FC2-MG is a push-to-connect tube-to-pipe connector fitting designed for fast, tool-free tube connections in pneumatic and fluid transfer systems. Manufactured from polyoxymethylene (POM), a rigid engineering-grade acetal resin, this connector accepts 1/4 inch outside diameter tubing and threads into a 1/8 inch NPTF port. The fitting is rated to 300 psi and is suited for compressed air, water, and light chemical service lines where a secure, leak-resistant connection is needed without compression tools or additional fittings. Plumbers, HVAC technicians, and instrumentation installers commonly use these fittings during panel builds, equipment hookups, and service work.

This fitting is appropriate for residential and light commercial applications involving pneumatic control lines, water supply connections, and instrument tubing. The push-to-connect mechanism allows fast field assembly, making it practical in tight access areas where wrench clearance is limited. The 1/8 inch NPTF thread ensures a pressure-tight mechanical seal at the pipe port. Typical applications include HVAC pneumatic controls, refrigeration instrumentation, water treatment panels, and plumbing fixture supply lines.

Key Features

• Push-to-connect design allows tool-free tube insertion and release
• Rated to 300 psi for use in compressed air and fluid service lines
• 1/4 inch OD tubing connection with 1/8 inch NPTF threaded pipe port
• Polyoxymethylene (POM) body offers chemical resistance and dimensional stability
• Tan color aids visual identification during panel wiring and tubing runs
• Compact connector profile suited for tight installation spaces

Compatibility

Designed as a direct-connect tube-to-pipe fitting for systems using 1/4 inch OD tubing and 1/8 inch NPTF threaded ports, consistent with standard pneumatic and fluid instrumentation panel configurations.

Installation Notes

This fitting is typically installed by HVAC technicians, plumbers, or instrumentation mechanics working on pneumatic control or fluid distribution systems. Before installation, depressurize the system completely and verify that tubing OD and port thread size match the fitting specifications. Insert tubing straight and fully into the push-to-connect port until it seats; angled insertion can compromise the internal collet grip. NPTF threads are designed to seal on thread interference alone, but confirm thread engagement meets system pressure requirements before returning the system to service.