Parker 169PTCNSL-8-8 Push-to-connect Tube Male Npt Fitting

Product Description

The PARKER 169PTCNSL-8-8 is a brass push-to-connect tube fitting with a male NPT end, designed for inline tube-to-tube connections with a threaded male port. It accepts 1/2 inch OD tubing on both tube ends and terminates with a 1/2 inch NPTF male thread. Rated to 250 psi maximum working pressure, it is built for compressed air and pneumatic plumbing circuits. The nitrile O-ring seals and push-to-connect design allow fast, tool-free tube insertion while maintaining a secure, leak-resistant connection. This fitting is D.O.T. compliant, making it suitable for air brake system plumbing on commercial vehicles and trailers.

This fitting is used in pneumatic and compressed air systems where a tube run must connect through a male NPT port or transition from tubing to a threaded male fitting. Common applications include air brake lines, fleet maintenance shops, industrial pneumatic plumbing, and HVAC or refrigeration control air circuits. The D.O.T. Air Brake designation makes it a go-to choice for commercial truck and trailer air brake plumbing. It is typically installed by fleet mechanics, pneumatic system technicians, or journeyman plumbers working on compressed air distribution.

Key Features

• Push-to-connect design on both tube ends for fast, tool-free tube insertion
• 1/2 inch OD tube compatibility with 1/2 inch NPTF male thread port
• 250 psi maximum working pressure rating
• Brass construction for corrosion resistance in air and pneumatic service
• Nitrile O-ring material for reliable sealing across a wide temperature range
• D.O.T. Air Brake Fitting designation for commercial vehicle air brake system use

Compatibility

Designed as a D.O.T.-rated air brake fitting for commercial vehicle and trailer air brake plumbing systems, and suitable for general industrial pneumatic tubing circuits using 1/2 inch OD tubing with 1/2 inch NPTF male threaded ports.

Installation Notes

Depressurize and drain the air system completely before removing or installing any fitting. Ensure tubing is cut squarely and deburred before insertion into the push-to-connect ports to achieve a proper seal. Thread engagement should follow standard NPTF hand-tight-plus-turns practice in accordance with applicable pneumatic or air brake system codes. Verify the installed assembly meets D.O.T. requirements before returning the air brake system to service.