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The PARKER PT-00646 is a flareless bite-type tube male connector designed for high-integrity tube-to-port connections in fluid power and industrial piping systems. It accepts a 20 mm outside diameter tube and connects via a 7/8-14 UNF male thread. The bite-type design uses a ferrule or sleeve that bites into the tube wall on assembly, eliminating the need to flare the tube end before installation. This fitting is commonly installed by hydraulic technicians, industrial maintenance mechanics, and plumbing professionals working with metric tube runs in equipment that uses UNF-threaded ports.
This connector is suited for use in hydraulic lines, lubrication circuits, and fluid transfer assemblies where a secure, leak-resistant tube-to-threaded-port connection is required. The 20 mm tube OD and 7/8-14 UNF thread combination is typical in mid-size hydraulic and industrial fluid systems. Each package contains 2 fittings, with a minimum order quantity of 1 package.
Designed as an OEM-style replacement or service fitting for fluid power and hydraulic systems that use 20 mm OD metric tubing with 7/8-14 UNF threaded port connections.
Installation is typically performed by a hydraulic technician or qualified mechanic. Depressurize and drain the hydraulic or fluid system fully before removing or installing any fittings. Ensure tube ends are cut square and deburred before seating the fitting sleeve. Follow the fitting manufacturer's assembly procedure for bite-type fittings, including the required number of turns past finger-tight, as specified in the system documentation.
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