Midland Industries 6400126 Jic to Orb Hydraulic Adapter

Product Description

The MIDLAND INDUSTRIES 6400126 is a steel hydraulic adapter designed to connect a 3/4-inch Male JIC fitting to a 3/8-inch Male O-Ring Boss port. Thread dimensions are 1-1/16-12 on the JIC end and 9/16-18 on the O-Ring Boss end. The adapter is rated for 3600 psi working pressure and handles operating temperatures up to 375 degrees F. Non-adjustable by design, it is pressure-tested to 4500 psi. Licensed technicians and hydraulic specialists install this fitting in fluid power systems, mobile hydraulic equipment, and industrial machinery wherever a JIC-to-ORB transition is required.

This adapter is suited for hydraulic circuits in construction equipment, agricultural machinery, industrial presses, and similar fluid power applications. The JIC 37-degree flare connection pairs with the O-Ring Boss port seal to minimize leak paths at the junction. Hydraulic system builders and service technicians rely on this fitting type when routing high-pressure steel tubing or hose assemblies into ported manifolds, cylinders, pumps, or valves that use ORB ports.

Key Features

• 3600 psi rated working pressure with 4500 psi non-adjustable proof pressure
• 3/4-inch Male JIC (1-1/16-12 thread) to 3/8-inch Male O-Ring Boss (9/16-18 thread)
• Steel construction for high-strength, high-pressure hydraulic service
• Rated to 375 degrees F operating temperature
• Compact geometry: 1.75 inches length, 1.2 inches width, 1.1 inches height
• Non-adjustable fitting for fixed-position port connections

Compatibility

Designed as an OEM-style replacement or new-installation fitting for hydraulic systems using 3/4-inch Male JIC hose or tube ends connecting to 3/8-inch Male O-Ring Boss ported components.

Installation Notes

Installation should be performed by a qualified hydraulic technician. Depressurize and fully bleed the hydraulic system before removing or installing any fittings. Inspect the O-Ring Boss port seal and JIC flare seat for damage before assembly. Follow applicable fluid power standards and equipment manufacturer torque guidelines for steel hydraulic fittings.