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The PARKER PS810306-8-8 is a straight inline hydraulic hose fitting designed for high-pressure fluid connections in hydraulic systems. It transitions from a male JIC 37-degree flare on one end to a female JIC 37-degree flare swivel on the other, allowing technicians to make or break connections without rotating hoses or adjacent components. Constructed from steel, this fitting carries a maximum working pressure of 5,000 psi and measures 2.91 inches in overall length. The 3/4-16 thread size and 1/2-inch hose size are standard JIC dimensions common across mobile and industrial hydraulic plumbing. It ships as a single unit and weighs approximately 1 pound.
This fitting is suited for use in mobile equipment, industrial machinery, and hydraulic power units wherever a JIC-to-JIC swivel connection is required in a straight, inline configuration. The swivel feature on the female end simplifies installation in tight spaces or fixed-position assemblies where hose rotation is not practical. It is typically installed by hydraulic technicians, heavy equipment mechanics, and industrial maintenance professionals working on 1/2-inch hydraulic hose assemblies. The PS series designation identifies it within the Parker catalog as a current production fitting for standard hydraulic service.
Designed as an OEM-style replacement or service fitting for hydraulic hose assemblies using 1/2-inch, 3/4-16 JIC threaded connections operating up to 5,000 psi.
Installation should be performed by a qualified hydraulic technician or mechanic. Always depressurize and bleed down the hydraulic system completely before disconnecting or installing any fittings. JIC 37-degree flare fittings rely on metal-to-metal seating and should be torqued to the fitting manufacturer's specification using a backup wrench to prevent hose twist. Inspect the flare seats on mating components for nicks or damage before assembly, and confirm thread engagement is full and free of cross-threading before applying final torque.
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