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The PARKER PP-00399 is a barbed push-on hose female swivel fitting machined from brass, designed to connect flexible push-on hose to a 3/4-16 FJIC threaded port. The swivel design allows the hose to be positioned without twisting during assembly, reducing installation effort and minimizing stress on the hose end. With a 3/8 inch barb, the fitting accepts 3/8 inch inside diameter push-on hose and locks it in place without the need for clamps or ferrules in low-pressure push-on applications. At 1.87 inches in length, this is a compact fitting suited for tight routing spaces in hydraulic and fluid transfer lines. Plumbers, hydraulic technicians, and fluid power specialists install this type of fitting in both mobile and stationary equipment.
This fitting is used in hydraulic fluid lines, lubrication systems, fuel transfer lines, and general fluid conveyance applications where a flexible hose must terminate at a JIC-threaded female swivel connection. The FJIC 3/4-16 thread is a standard 37-degree flare interface common across hydraulic components in industrial and mobile equipment. The brass construction makes it suitable for use with oils, water, and a range of hydraulic fluids, and appropriate for moderate-pressure service environments. This part is packaged in quantities of 5, making it practical for service shops stocking common fitting sizes.
Designed for use with 3/8 inch inside diameter push-on hose and equipment with 3/4-16 FJIC threaded ports. Suitable for hydraulic and fluid transfer systems using standard 37-degree flare JIC connections.
Installation should be performed by a qualified hydraulic technician or plumber familiar with JIC flare fittings and push-on hose assemblies. Depressurize and drain the fluid circuit completely before disconnecting or installing any fittings. Ensure the barb end is fully seated into the hose and that the FJIC swivel nut is tightened to the mating port per the system manufacturer's torque guidance for 3/4-16 JIC connections. Inspect the hose and fitting assembly for leaks before returning the system to service.
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