Parker 369PTCSP-4-6 Push-to-connect Plug Fitting

Product Description

The PARKER 369PTCSP-4-6 is a push-to-connect plug-in tube fitting designed to cap or terminate a 1/4 x 3/8 inch OD tube line without tools. Built from a combination of brass, Buna-N, and nylon, this fitting handles working pressures up to 250 psi and operates reliably across a temperature range of -40 degrees F to 200 degrees F. It meets D.O.T. FMVSS571.106, SAE J2494-3, and SAE J844 standards, making it appropriate for pneumatic and fluid line applications where compliance is required. Plumbers, HVAC technicians, and fleet service professionals install this type of plug to seal off an open tube end during service or system modification.

This plug fitting is used in pneumatic tubing systems, air brake lines, and fluid transfer circuits found in commercial vehicles, industrial equipment, and HVAC applications. Its push-to-connect design allows fast installation without additional hardware or thread sealant. The 1/4 x 3/8 inch OD sizing is common in light-duty air and fluid circuits where a secure, leak-resistant termination point is needed during system reconfiguration or when capping an unused port.

Key Features

• Push-to-connect plug design allows tool-free tube termination
• Rated to 250 psi maximum working pressure
• Operating temperature range of -40 degrees F to 200 degrees F
• Brass, Buna-N, and nylon construction for durability and chemical resistance
• Meets D.O.T. FMVSS571.106, SAE J2494-3, and SAE J844 standards
• Compact form factor: 1.2 inches height, 0.74 inches length, 0.55 inches width

Compatibility

Designed for use with 1/4 x 3/8 inch OD push-to-connect tube systems in pneumatic and fluid line applications conforming to SAE J844 and SAE J2494-3 specifications.

Installation Notes

Installation should be performed by a qualified technician familiar with pneumatic or fluid system service. Depressurize the line completely before inserting or removing any push-to-connect fitting. Ensure the tube end is cut cleanly and squarely and is free of burrs before seating the plug. Verify the fitting is fully seated before re-pressurizing the system and inspect for leaks at operating pressure.