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The PARKER PP-00051 is a barbed push-on hose female swivel fitting manufactured from steel and designed for use in hydraulic and fluid-transfer hose assemblies. The swivel end accepts a 5/8-18 UNF threaded connection while the barbed end accepts a 3/8-inch inside-diameter push-on hose. The overall length is 1.81 inches. The female swivel design allows the fitting to rotate during installation, reducing hose twist and making it easier to achieve a secure, leak-free connection without specialized tooling. This fitting is installed by HVAC technicians, plumbers, and hydraulic system mechanics working on low-pressure fluid lines.
This fitting is suited for residential and light commercial applications where push-on hose assemblies connect to threaded female ports. The 5/8-18 UNF thread standard is common in automotive, HVAC, and fluid-power equipment. The 3/8-inch barb accepts standard push-on hose of matching inside diameter, providing a friction-based mechanical seal. This item is sold in a package quantity of five, making it practical for service vehicles and small-shop inventory.
Designed as an OEM-style replacement or service fitting for fluid-transfer and hose assemblies requiring a 5/8-18 UNF threaded female swivel connection with a 3/8-inch barbed hose end.
Installation is performed by qualified mechanics or technicians. Depressurize and drain the fluid system completely before removing or installing any fitting. Inspect the mating threaded port for damage or debris before threading the swivel end. Push-on hose should be seated fully over the barb to ensure a secure, leak-resistant connection; verify hose inside diameter matches the 3/8-inch barb before assembly.
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