Eaton 06Z-R66-BG Hydraulic Swivel 90 Elbow 6mm 9/16-18 Unf

Product Description

The EATON 06Z-R66-BG is a hydraulic hose fitting configured as an O-Ring Boss (ORB) swivel 90-degree elbow. It connects a 6 mm hose to a 9/16-18 UNF threaded port using a boss O-ring seal to eliminate leak paths at the port face. The swivel design allows the hose end to rotate during assembly, reducing installation torque and preventing hose twist. Constructed from steel, this elbow is suited for hydraulic circuits operating under high working pressures. It is installed by hydraulic system technicians and equipment mechanics in mobile and industrial hydraulic applications.

This fitting is used wherever a 90-degree change in hose routing is required at an O-Ring Boss port. Typical applications include mobile equipment hydraulics, agricultural machinery, construction equipment, and industrial power units. The ORB thread form provides a positive, leak-resistant seal at the port without relying on thread sealant. The 9/16-18 UNF thread size is a standard SAE port size commonly found on hydraulic valves, pumps, cylinders, and manifolds.

Key Features

• O-Ring Boss swivel 90-degree elbow configuration for right-angle hose routing
• Swivel end allows hose positioning without twisting the hose assembly
• 9/16-18 UNF thread conforms to SAE O-Ring Boss port standard
• Steel construction for high-pressure hydraulic service
• Face seal design at the boss port reduces leak risk compared to tapered thread fittings

Compatibility

Designed as an OEM-style replacement hydraulic hose fitting for systems using 6 mm hose and 9/16-18 UNF O-Ring Boss ports in mobile and industrial hydraulic circuits.

Installation Notes

Installation should be performed by a qualified hydraulic technician. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. Inspect the O-ring seating surface on the boss port for damage before assembly, and use a new O-ring if the existing one shows wear or deformation. Torque the fitting to the equipment manufacturer's specification for the port size — do not over-tighten steel fittings into aluminum ports.