Parker 6-8 F5OX-S Flared Tube Connector 3/8 in Od

Product Description

The PARKER 6-8 F5OX-S is a steel flared tube straight thread connector designed for high-pressure hydraulic and fluid power lines. It connects a 37-degree flared tube end to a straight thread SAE O-Ring Boss (ORB) port, creating a leak-resistant seal without the need for additional sealant compounds. With a maximum working pressure of 6000 psi and a maximum working temperature of 500 degrees F, this fitting is rated for demanding industrial and mobile equipment applications. The overall length is 1.38 inches and the tube outside diameter is 3/8 inch. Fluid system technicians and hydraulic plumbers install this fitting as part of JIC-to-ORB transition connections in compressed fluid systems.

This connector is suited for use in hydraulic systems, pneumatic lines, and industrial fluid power assemblies where a flared tube must terminate into an SAE O-Ring Boss port. It is commonly installed in mobile equipment, machine tool plumbing, and industrial machinery requiring a reliable, reusable metal-to-metal plus O-ring seal. It conforms to ISO 8434-2, SAE 070120, and SAE J514 standards, making it appropriate for OEM builds and field service replacements requiring specification compliance.

Key Features

• 37-degree flare angle on tube end meets SAE J514 and ISO 8434-2 specifications
• SAE O-Ring Boss (ORB) straight thread port end provides a positive, leak-resistant seal
• Maximum working pressure of 6000 psi for high-pressure hydraulic service
• Rated to 500 degrees F maximum working temperature for high-heat environments
• Steel construction for durability in industrial and mobile equipment plumbing
• Compact design at 1.38 inches overall length for tight installation spaces

Compatibility

Designed as an OEM-style replacement or new-build fitting for hydraulic and fluid power systems requiring a 3/8 inch OD flared tube to SAE O-Ring Boss straight thread port connection conforming to SAE J514 and ISO 8434-2 standards.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power specialist. Depressurize and isolate the hydraulic circuit completely before removing or installing any fittings. The SAE-ORB end relies on the O-ring for sealing — inspect the O-ring for damage before assembly and do not over-torque, as this can damage the sealing surface. Verify tube flare geometry meets SAE J514 37-degree specifications before makeup to ensure a leak-free connection.