Parker 4 F5OLO-S Straight Thread Connector 7/16-20

Product Description

The PARKER 4 F5OLO-S is a compression tube straight thread connector designed to join hydraulic or fluid lines using an O-Ring Face Seal (ORFS) end to a SAE Straight Thread O-Ring Boss (SAE-ORB) port. Constructed from steel, this fitting handles demanding system pressures up to 9200 psi. The 7/16-20 UNF thread standard ensures a reliable, leak-resistant connection in high-pressure hydraulic and pneumatic circuits. It is installed by hydraulic technicians, plumbers, and fluid-system specialists working on mobile equipment, industrial machinery, or process piping where secure tube-to-port connections are required.

This connector is suited for use in hydraulic systems, industrial fluid lines, and mobile equipment applications where a 1/4 inch outside diameter tube must terminate at an SAE-ORB threaded port. The ORFS end provides a metal-to-metal face seal backed by an O-ring, minimizing leak paths under pressure cycling. Typical installation scenarios include connecting tubing runs to valve bodies, manifolds, pump ports, or cylinder end caps on both stationary and mobile hydraulic equipment.

Key Features

• ORFS x SAE-ORB end connections for secure, leak-resistant tube-to-port interface
• 7/16-20 UNF thread size for precise engagement with standard SAE-ORB ports
• Steel construction for high-pressure durability up to 9200 psi working pressure
• Accepts 1/4 inch outside diameter tubing on the compression end
• Compact, single-unit package suitable for repair stock or direct installation

Compatibility

Designed as an OEM-style replacement or direct-fit connector for hydraulic and fluid systems requiring a 1/4 inch OD tube connection to a 7/16-20 UNF SAE-ORB threaded port.

Installation Notes

Installation should be performed by a qualified hydraulic technician or pipefitter. Depressurize and bleed down the hydraulic system completely before removing or installing any fittings. Inspect the O-ring sealing surface and the SAE-ORB port face for nicks or contamination before assembly. Follow the fitting manufacturer and equipment OEM guidelines for thread engagement and O-ring lubrication; do not over-tighten, as this can damage the O-ring seal or distort the fitting body.