Parker 68PTC-8-6 Push-to-connect Male Connector 1/2 Od

Product Description

The PARKER 68PTC-8-6 is a push-to-connect male connector tube fitting designed for air brake and pneumatic plumbing applications. It provides a tube-to-male NPT connection on both ends, allowing quick, tool-free tube insertion on the push-to-connect side while threading directly into a female NPT port. Constructed from brass with a nitrile O-ring seal, the fitting handles working pressures up to 250 psi and operates across a temperature range of -40 degrees F to 200 degrees F. It is a DOT-compliant air brake fitting meeting FMVSS 571.106, SAE J2494, and SAE J2494-3 standards. Licensed plumbers, HVAC mechanics, and fleet maintenance technicians are the typical installers.

This fitting is suited for commercial vehicle air brake systems, compressed air distribution lines, and pneumatic control circuits where a reliable push-to-connect tube entry is needed alongside a threaded port connection. The 1/2 inch OD tube entry and 3/8 inch NPTF thread make it a common choice for mid-size air lines in both mobile and stationary pneumatic systems. Its brass construction and nitrile O-ring resist the oils and moisture found in typical compressor-fed air circuits.

Key Features

• Push-to-connect design allows fast, tool-free tube insertion for 1/2 inch OD tubing
• 3/8 inch NPTF male thread for leak-resistant tapered thread engagement
• Brass body construction for corrosion resistance in air and pneumatic service
• Nitrile O-ring seal rated for oil-laden and moisture-containing compressed air
• 250 psi maximum working pressure with a wide service temperature range of -40 to 200 degrees F
• DOT-compliant: meets FMVSS 571.106, SAE J2494, and SAE J2494-3 for air brake service

Compatibility

Designed as a DOT air brake fitting for commercial vehicle air brake systems and pneumatic plumbing circuits using 1/2 inch OD tubing with 3/8 inch NPTF female port connections.

Installation Notes

Depressurize and drain the air system completely before removing or installing any fittings. The push-to-connect end accepts tubing with a clean, square-cut end; inspect tubing for burrs or ovality before insertion. The NPTF thread is a tapered dry-seal thread and typically does not require thread sealant tape, but follow the vehicle or system manufacturer guidelines and applicable DOT regulations. Air brake system service on commercial vehicles must comply with applicable federal motor carrier safety regulations.