Parker 369PTCSP-6-6 Push-to-connect Plug 3/8 Inch Od

Product Description

The PARKER 369PTCSP-6-6 is a push-to-connect plug-style tube fitting designed to seal off an open 3/8-inch OD tube end without the need for threaded connections or additional tools. Constructed from brass with Buna-N seals and a nylon body component, this fitting handles a maximum working pressure of 250 psi across a temperature range of -40 degrees F to 200 degrees F. It is a compact, single-use plug intended for pneumatic and fluid line termination in mobile, automotive, and industrial plumbing systems. Plumbers, HVAC technicians, and fleet maintenance professionals install this fitting wherever a tube line must be capped quickly and securely.

This fitting is suited for use in air brake systems, pneumatic control lines, and fluid transfer tubing where a fast, reliable tube termination is required. Its DOT FMVSS 571.106 and SAE J844 compliance make it appropriate for mobile and on-highway equipment applications. SAE J2494-3 conformance further supports use in push-to-connect fittings for air brake tubing. The plug accepts standard 3/8-inch OD tubing and installs without wrenches, making it practical for field service and repair work where downtime needs to be minimized.

Key Features

• Push-to-connect design seals 3/8-inch OD tubing without tools
• Brass body with Buna-N seals for compatibility with air and common fluid media
• Rated to 250 psi maximum working pressure
• Operating range of -40 degrees F to 200 degrees F
• Meets DOT FMVSS 571.106, SAE J844, and SAE J2494-3 standards
• Compact form factor: 1.32 inches tall, 0.96 inches long, 0.75 inches wide

Compatibility

Designed as an OEM-style push-to-connect plug fitting for 3/8-inch OD tubing in pneumatic, air brake, and fluid transfer systems meeting DOT and SAE J844 specifications.

Installation Notes

Installation is performed by qualified technicians following applicable DOT, SAE, or facility safety procedures. Before servicing any pressurized line, depressurize the system fully and relieve all residual fluid or air pressure. Insert the tubing squarely into the fitting collar until it seats fully; do not insert at an angle. Inspect the tube end for burrs or damage before insertion, as irregular tube ends can compromise the seal.