Parker PS690510-6-6 Hydraulic Hose Fitting 3/8 in 5000 Psi

Product Description

The PARKER PS690510-6-6 is a straight hydraulic hose fitting designed to connect a male O-ring boss (ORB) thread to a female SAE straight thread port. Built from steel, it carries a maximum working pressure of 5,000 psi, making it appropriate for high-pressure hydraulic lines found in industrial equipment, mobile machinery, and fluid power systems. The fitting measures 2.87 inches in overall length and uses a 9/16-18 thread size. Licensed hydraulic technicians and fluid power mechanics install this type of fitting when routing or repairing high-pressure hose assemblies that require a reliable, leak-resistant threaded connection.

This fitting is suited for use in hydraulic systems operating at or below 5,000 psi where a male ORB to female ORB threaded interface is required. Typical applications include mobile hydraulic circuits on construction, agricultural, and material-handling equipment, as well as stationary industrial hydraulic power units. The 3/8 inch hose size and straight configuration make it a common selection when building or servicing hydraulic hose assemblies that connect to SAE-ported valves, cylinders, and manifolds.

Key Features

• Male ORB to female SAE straight thread configuration for high-pressure hose routing
• 5,000 psi maximum working pressure rated for demanding hydraulic service
• Steel construction provides durability in industrial and mobile equipment environments
• Straight body shape simplifies installation in tight or in-line plumbing layouts
• 9/16-18 thread size with 3/8 inch hose and body diameter for consistent flow path sizing
• 2.87 inch overall length accommodates standard hose end assemblies without excessive reach

Compatibility

Designed as an OEM-style replacement or new-build fitting for hydraulic hose assemblies using 3/8 inch hose with male ORB to female SAE straight thread connections rated to 5,000 psi.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power mechanic familiar with high-pressure hose assembly practices. Depressurize and lock out the hydraulic system completely before removing or installing any fittings. Inspect the O-ring seating surfaces for nicks or contamination prior to assembly, and verify thread engagement is correct before applying torque. Follow the equipment manufacturer and applicable fluid power standards for assembly and pressure testing procedures.