Eaton 04Z-S66-BG Female Ors Swivel Fitting 4mm Steel

Product Description

The EATON 04Z-S66-BG is a female O-ring face seal (ORS) swivel fitting designed for hydraulic hose assemblies. It connects a 4 mm hydraulic hose to a fixed port using an 11/16-16 thread, providing a leak-resistant, rotatable interface that simplifies routing and assembly. The FOR-SEAL shaft type ensures a proper sealing surface for O-ring face seal connections. Constructed from steel, this fitting is built to handle the mechanical stress and pressure demands typical of industrial and mobile hydraulic systems. It is installed by hydraulic technicians and fluid power specialists working on equipment maintenance or new hose assembly builds.

This fitting is suited for use in mobile equipment, industrial machinery, and hydraulic power units where a female ORS swivel end connection is required on a 4 mm hose line. The swivel design allows the hose to be oriented without twisting during installation, reducing strain on the assembly. The 11/16-16 thread size is a common straight-thread ORS specification used across a wide range of hydraulic porting standards.

Key Features

• Female ORS swivel design allows hose positioning without twisting the line
• FOR-SEAL shaft type provides a proper seating surface for O-ring face seal connections
• 11/16-16 straight thread compatible with standard ORS porting
• Steel construction for durability in high-pressure hydraulic applications
• 9/16-inch hex size for standard wrench installation
• Sold individually — package quantity of 1

Compatibility

Designed as an OEM-style replacement swivel fitting for hydraulic hose assemblies requiring a 4 mm hose size with an 11/16-16 female ORS swivel end connection.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power specialist. Depressurize and lock out the hydraulic system fully before removing or installing any fittings. Use a backup wrench on the port to prevent port body rotation, and torque the fitting using the hex flats only — do not use the hose or ferrule as a grip point. Verify that the O-ring sealing surface is clean and undamaged before final assembly.