Parker A5MTS4-MG Male Swivel Branch Tee 5/16 in Od

Product Description

The PARKER A5MTS4-MG is a push-to-connect male swivel branch tee tube fitting designed for fast, tool-free tubing connections in fluid and pneumatic distribution lines. Built from polyoxymethylene (POM), a high-strength acetal resin, it accepts 5/16 inch outside diameter tubing and terminates with a 1/4 inch NPTF male swivel thread. The EPDM O-ring seat supports a rated working pressure of 300 psi. The swivel feature on the male branch allows for easier thread engagement without twisting the tubing run. This fitting is installed by licensed plumbers, HVAC technicians, and industrial maintenance technicians working on compressed air, water, or fluid transfer systems.

This fitting is suited for residential and light commercial applications where push-to-connect speed is preferred over compression or flare fittings. Typical installations include pneumatic control lines, refrigeration condensate routing, water treatment equipment, and low-pressure fluid distribution panels. The branch tee configuration allows a single inline run to add a perpendicular male-threaded branch outlet, simplifying manifold and distribution plumbing without additional fittings or adapters.

Key Features

• Push-to-connect design allows fast, tool-free tubing insertion for 5/16 inch OD tube
• Male swivel branch enables thread makeup without rotating the tube assembly
• POM (polyoxymethylene) body provides chemical resistance and dimensional stability
• EPDM O-ring material compatible with water and many aqueous fluid applications
• 1/4 inch NPTF thread provides a pressure-tight mechanical seal without sealant tape in many applications
• Rated to 300 psi working pressure

Compatibility

Designed as an OEM-style push-to-connect replacement fitting for systems using 5/16 inch OD tubing with 1/4 inch NPTF male branch connections in pneumatic, water, or fluid transfer applications.

Installation Notes

Shut off all system pressure and depressurize the line fully before removing or installing any tube fitting. Tubing should be cut square and deburred before insertion to ensure a proper collet grab and leak-free seal. NPTF threads are designed to seal on the thread form itself, but consult system requirements for whether thread sealant is appropriate for the fluid service. This fitting should be installed by a qualified technician in accordance with applicable mechanical or plumbing codes.