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The PARKER 10402 is a hydraulic hose swivel elbow adapter designed for high-pressure fluid power systems. It connects a 3/8 inch hose end to a 9/16-18 SAE O-Ring Boss (ORB) port using a swivel elbow configuration, allowing the hose to be positioned without twisting the assembly during installation or service. Constructed from steel, this adapter is rated to 6,000 psi, making it suitable for demanding hydraulic circuits found in industrial and mobile equipment. Installation is performed by licensed hydraulic system technicians or qualified fluid power mechanics.
This adapter is used in hydraulic systems where a 90-degree change in hose direction is required at an SAE ORB port. Typical applications include industrial machinery, mobile hydraulic equipment, and fluid power assemblies that run 3/8 inch hose. The swivel feature reduces stress on the hose and fitting during routing and service. The 9/16-18 SAE ORB thread type provides a reliable, leak-resistant seal at the port connection.
Designed as an OEM-style replacement or service fitting for hydraulic systems using 3/8 inch hose with 9/16-18 SAE O-Ring Boss ports rated up to 6,000 psi.
Installation should be performed by a qualified hydraulic technician or fluid power mechanic. Depressurize and isolate the hydraulic circuit completely before disconnecting or installing any fittings. Inspect the O-ring seat and mating port for damage or contamination before torquing into place. Follow applicable fluid power standards and equipment manufacturer specifications for fitting installation procedures.
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