Parker 172PTC-4-2 Swivel Male Branch Tee 1/4 Od 1/8 Npt

Product Description

The PARKER 172PTC-4-2 is a push-to-connect swivel male branch tee tube fitting designed for pressurized pneumatic and air brake plumbing systems. Built from brass with a nitrile O-ring, this fitting accepts 1/4 inch OD tubing on the push-to-connect ports and features a 1/8 inch NPT male thread on the branch. It is rated for a maximum working pressure of 250 psi and handles a temperature range of -40 degrees F to 200 degrees F. The swivel design allows the male NPT thread to rotate during installation, making it easier to achieve proper alignment without twisting the tubing. Licensed HVAC and brake system technicians, as well as fleet maintenance professionals, are the primary installers of this fitting.

This fitting is intended for use in D.O.T.-compliant air brake systems on commercial vehicles and trailers, as well as pneumatic control lines in industrial and HVAC applications where 1/4 inch OD tubing connects to a 1/8 inch NPT ported manifold, valve, or component. Its brass construction makes it suitable for clean air, nitrogen, and light pneumatic service. The fitting meets D.O.T. FMVSS 571.106, SAE J2494, SAE J2494-3, and SAE J844 standards, making it acceptable for regulated air brake installations.

Key Features

• Push-to-connect design for tool-free, leak-resistant tube insertion on 1/4 inch OD tubing
• Swivel male NPT branch allows thread engagement without torquing the tubing
• Rated to 250 psi maximum working pressure
• Operating range of -40 degrees F to 200 degrees F suits harsh underhood and outdoor environments
• Nitrile O-ring provides reliable sealing against air and light pneumatic media
• Meets D.O.T. FMVSS 571.106, SAE J2494, SAE J2494-3, and SAE J844 standards

Compatibility

Designed as a D.O.T.-compliant air brake fitting for systems using 1/4 inch OD tubing with 1/8 inch NPT ported components, per SAE J844 and SAE J2494 specifications.

Installation Notes

Depressurize the air system completely before removing or installing any brake line fittings. Ensure the tubing end is cut cleanly and squarely with no burrs before insertion into the push-to-connect port. Hand-tighten the swivel NPT thread into the receiving port first, then apply a wrench for a final snug turn — do not overtighten into plastic or soft metal ports. Installation in regulated air brake systems must comply with applicable D.O.T. and SAE requirements.