Parker A4MC6-MG Push-to-connect Tube Fitting Connector

Product Description

The PARKER A4MC6-MG is a push-to-connect tube-to-pipe connector fitting designed for quick, tool-free tube connections in fluid and pneumatic systems. Manufactured from polyoxymethylene (POM), a durable acetal resin, this fitting accepts 1/4 inch OD tubing and connects to a 3/8 inch NPTF threaded port. It is rated to 300 psi, making it suitable for a range of low-to-medium pressure applications. The push-to-connect design allows a technician to seat the tube with a single push and release it with a collar retraction, reducing installation time on plumbing, HVAC, and pneumatic lines.

This fitting is used in residential and light commercial applications where a fast, reliable tube-to-pipe connection is required. Typical install scenarios include compressed air lines, water supply connections, and instrument tubing in HVAC controls or pneumatic actuator circuits. The tan POM body resists moisture and many common chemicals encountered in these environments. HVAC technicians, plumbers, and instrumentation specialists all work with fittings in this family during system assembly or service calls.

Key Features

• Push-to-connect design allows tool-free tube insertion and single-step release
• Rated to 300 psi for low-to-medium pressure service
• Polyoxymethylene (POM) body provides chemical resistance and dimensional stability
• 1/4 inch OD tube connection with 3/8 inch NPTF male pipe thread
• Compact, lightweight construction at 0.02 pounds
• Tan color for easy visual identification in multi-line installations

Compatibility

Designed as an OEM-style push-to-connect replacement or new-install connector for systems using 1/4 inch OD tubing with 3/8 inch NPTF threaded ports in pneumatic, fluid transfer, or HVAC control applications.

Installation Notes

Installation is performed by a licensed plumber, HVAC technician, or qualified instrumentation tech. Shut off system pressure and relieve line pressure before removing or installing any fitting. Ensure the tube end is cut squarely and cleanly deburred before insertion to achieve a proper seal. Verify thread type compatibility before applying thread sealant; NPTF threads are designed for dry-seal connections but sealant may still be required depending on application and applicable code.