Parker 179PTCNS-4-4 45 Male Elbow 1/4 Od 1/4 Npt Brass Dot

Product Description

The PARKER 179PTCNS-4-4 is a push-to-connect rigid 45-degree male elbow tube fitting made for air brake and pneumatic plumbing lines. It connects 1/4 inch OD tubing to a 1/4 inch male NPT port, creating a fixed 45-degree directional change without additional fittings. Constructed from brass with a nitrile O-ring, it is rated for 250 psi maximum working pressure and handles temperatures from -40 degrees F to 200 degrees F. This fitting meets DOT FMVSS 571.106, SAE J2494, SAE J2494-3, and SAE J844 standards, making it a compliant choice for commercial vehicle air brake systems. Plumbers and fleet maintenance technicians working on DOT-regulated brake circuits use this fitting for reliable, leak-resistant connections.

The 179PTCNS-4-4 is used in DOT-regulated air brake plumbing on commercial trucks, trailers, and buses where a compact 45-degree directional transition is needed from a threaded NPT port to push-to-connect tubing. The push-to-connect design allows quick tube insertion and secure retention without threading or flaring the tube end. It is appropriate for both OEM assembly and field service replacement in pneumatic circuits operating within its rated pressure and temperature limits.

Key Features

• Push-to-connect design accepts 1/4 inch OD tube for tool-free tube insertion
• 45-degree rigid male elbow configuration for directional routing in tight spaces
• Brass construction with nitrile O-ring for durability in pneumatic service
• Rated to 250 psi maximum working pressure
• Operating temperature range of -40 degrees F to 200 degrees F
• Compliant with DOT FMVSS 571.106, SAE J2494, SAE J2494-3, and SAE J844 standards

Compatibility

Designed for use in DOT air brake systems and pneumatic circuits requiring a 1/4 inch OD tube to 1/4 inch male NPT connection with a 45-degree elbow orientation.

Installation Notes

Installation should be performed by a qualified technician familiar with DOT air brake system regulations. Depressurize the air system completely before removing or installing any fittings. Ensure the tube end is cut cleanly and squarely and is free of burrs before inserting into the push-to-connect fitting. Verify the NPT threads are properly sealed with approved thread sealant and that the completed assembly is leak-tested before returning the vehicle to service.