Parker 369PTCSP-6-4 Push-to-connect Plug 3/8x1/4 Od

Product Description

The PARKER 369PTCSP-6-4 is a push-to-connect plug-in tube fitting designed to terminate or cap a pneumatic or fluid line without tools. Constructed from brass with Buna-N seals and a nylon body component, it delivers reliable sealing at working pressures up to 250 psi. The fitting accepts tube outside diameters of 3/8 inch and 1/4 inch and handles a service temperature range from -40 degrees F to 200 degrees F. It meets D.O.T. FMVSS571.106, SAE J2494-3, and SAE J844 standards, making it suitable for automotive air brake and fluid transfer systems. HVAC, pneumatic, and plumbing technicians install this fitting when a line needs to be blanked off cleanly during service or system modification.

This fitting is commonly used in applications requiring a secure, leak-free cap on pneumatic tubing or low-pressure fluid lines. Typical install scenarios include air brake system service, compressed air distribution, and refrigeration or HVAC auxiliary tubing where a branch or port must be isolated. The plug-in design allows fast installation without ferrules, clamps, or wrenches, reducing labor time on the bench or in the field. Both residential and light commercial service applications fall within its operating envelope given the rated temperature and pressure limits.

Key Features

• Push-to-connect design requires no tools or ferrules for installation
• Rated to 250 psi maximum working pressure
• Operating temperature range: -40 degrees F to 200 degrees F
• Brass construction with Buna-N seals for broad fluid compatibility
• Meets D.O.T. FMVSS571.106, SAE J2494-3, and SAE J844 standards
• Accepts 3/8 inch and 1/4 inch OD tubing

Compatibility

Designed as an OEM-style replacement plug fitting for pneumatic and fluid transfer tube systems using 3/8 inch or 1/4 inch outside diameter tubing that conform to DOT and SAE push-to-connect standards.

Installation Notes

Installation should be performed by a qualified technician following applicable SAE and D.O.T. service procedures. Always depressurize and bleed the system before removing or installing any fitting. Ensure tubing ends are cut cleanly and squarely and are free of burrs before inserting into the fitting. Verify tube OD matches the fitting specification before applying system pressure.