Parker 1719720 Female O-ring Boss Coupler 3/8 in 4000 Psi

Product Description

The PARKER 1719720 is a straight female O-Ring Boss (ORB) hydraulic hose coupler designed for high-pressure fluid power systems. Rated to 4,000 psi maximum working pressure, this fitting accepts a 3/8 inch hose and uses a 9/16-18 threaded connection to create a leak-resistant, ORB-sealed joint. The body is machined from steel for durability under continuous pressure cycling. At 2.18 inches overall length, the 1719720 is a compact inline coupler suited for tight routing in mobile hydraulic circuits. Installation is performed by licensed hydraulic technicians or qualified mechanics working on fluid power systems.

This coupler is rated for mobile hydraulic applications including snow plows and truck trailer connections. The straight configuration suits direct inline hose-to-port connections at SAE ORB ports. With a maximum flow rate of 6.00 GPM and a working pressure of 4,000 psi, it fits the pressure and flow demands typical of mobile equipment auxiliary circuits. It conforms to ISO 7241-1 Series A standards and belongs to the Parker Series 6600 product line.

Key Features

• 4,000 psi maximum working pressure for demanding mobile hydraulic service
• Female O-Ring Boss thread (9/16-18) provides a positive, leak-resistant seal
• Steel construction for resistance to pressure cycling and mechanical stress
• Straight body shape allows direct inline hose-to-port routing
• Maximum flow rate of 6.00 GPM
• Conforms to ISO 7241-1 Series A standards

Compatibility

Rated for use with mobile applications, snow plows, and truck trailer connections. Designed for hydraulic systems using SAE ORB ports with a 9/16-18 thread size and 3/8 inch hose connections operating within the 4,000 psi working pressure rating.

Installation Notes

Installation should be performed by a qualified hydraulic technician or mechanic familiar with fluid power systems. Depressurize and isolate the hydraulic circuit completely before disconnecting or installing any fittings. Verify thread engagement and O-ring seating before returning the system to service. Torque to the fitting manufacturer specification using appropriate crow-foot or open-end wrenches rated for hydraulic work.