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The PARKER 371PTCSP-6-4 is a push-to-connect plug-in run tee tube fitting designed for quick, tool-free connections in pneumatic and fluid transfer line applications. Constructed from brass with Buna-N seals and a nylon body insert, this fitting handles a maximum working pressure of 250 psi and an operating temperature range of -40 degrees F to 200 degrees F. It accepts 3/8 inch OD tubing on the run ports and 1/4 inch OD tubing on the branch port. Licensed HVAC techs, plumbers, and automotive fluid system technicians install these fittings where fast, reliable tube connections are required without threaded or compression tooling.
This fitting is suited for residential and light commercial pneumatic control lines, brake and fuel system tubing, and refrigeration or air-conditioning ancillary plumbing where DOT and SAE-rated components are required. The plug-in connection style simplifies installation in tight spaces and allows quick line changes during service. Its compact overall length of 2.11 inches makes it practical in panel or cabinet installations where clearance is limited. It meets DOT FMVSS571.106, SAE J2494-3, and SAE J844 standards, making it appropriate for both automotive and industrial fluid line work.
Designed for use with 3/8 inch OD tubing on run ports and 1/4 inch OD tubing on the branch port in pneumatic, automotive brake, fuel, and fluid transfer line systems meeting DOT and SAE J844 tubing specifications.
Installation should be performed by a qualified technician familiar with pneumatic or fluid line systems. Depressurize and isolate the line fully before disconnecting or inserting tubing. Ensure tubing ends are cut cleanly and squarely with no burrs before inserting into the push-to-connect ports. Verify tubing OD and wall specifications meet the requirements of the applicable SAE or DOT standard before putting the system back into service.
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