Parker 1720637 Female O-ring Boss Nipple 4000 Psi

Product Description

The PARKER 1720637 is a female O-ring boss (ORB) nipple fitting designed for hydraulic hose assemblies operating at pressures up to 4,000 psi. Constructed from steel with SAE thread geometry, this fitting uses a 1-1/16-12 thread size and a 1/2-inch body diameter. The O-ring boss design creates a leak-resistant seal at the port face, making it well suited for high-pressure hydraulic circuits where reliable fluid containment is critical. Hydraulic technicians and fluid power specialists install this type of fitting when assembling or repairing hydraulic lines on mobile and industrial equipment.

This fitting is appropriate for use in both mobile hydraulic systems and stationary industrial hydraulic circuits. It is commonly used to terminate or connect hydraulic hose to ports on pumps, valves, cylinders, and manifolds where an SAE O-ring boss port is specified. The steel construction supports demanding duty cycles in environments where hydraulic fluid, vibration, and mechanical stress are routine.

Key Features

• Pressure rating of 4,000 psi suitable for high-pressure hydraulic lines
• Female O-ring boss thread form provides a positive face seal at the port
• 1-1/16-12 SAE thread size for compatibility with standard ORB ports
• 1/2-inch body diameter for consistent flow path sizing
• Steel construction for strength and durability in hydraulic service

Compatibility

Designed as an OEM-style hydraulic hose fitting for use with SAE O-ring boss ports conforming to the 1-1/16-12 thread specification on hydraulic pumps, valves, cylinders, and manifolds.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power specialist. Depressurize and isolate the hydraulic circuit fully before removing or installing any fittings. Inspect the O-ring for damage prior to assembly and ensure the mating port face is clean and free of burrs to achieve a proper seal. Follow the equipment manufacturer's recommended assembly procedures and applicable fluid power standards.