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The MIDLAND INDUSTRIES SS6400-08-08 is a straight hydraulic adapter machined from 316 stainless steel, designed to connect a 1/2-inch Male JIC fitting to a 1/2-inch Male O-Ring Boss (ORB) port. The 3/4-16 thread form is standard for both JIC and ORB connections at this size. With a maximum operating pressure of 4500 psi and a rated operating temperature of 1000 degrees F, this adapter is built for demanding fluid power, instrumentation, and high-temperature process plumbing applications. Overall length is 1.488 inches. It is installed by hydraulic technicians, industrial pipefitters, and maintenance mechanics wherever a JIC-to-ORB transition is required in a stainless-compatible system.
This adapter is used in hydraulic systems, fluid power circuits, and high-pressure process lines that require corrosion-resistant fittings. The 316 stainless steel construction makes it suitable for marine, chemical, food processing, and offshore environments where carbon steel fittings would be inappropriate. It is part of the SS6400 Series from MIDLAND INDUSTRIES, covering Male JIC to Male O-Ring Boss straight adapter configurations. Typical applications include connecting hose assemblies terminated with JIC swivels to manifold blocks, cylinders, or valves with SAE straight-thread ORB ports.
Designed for use in hydraulic and fluid power systems with 1/2-inch JIC (37-degree flare) hose ends and SAE straight-thread O-Ring Boss ports. Part of the MIDLAND INDUSTRIES SS6400 Series of stainless steel JIC-to-ORB adapters.
Installation should be performed by a qualified hydraulic technician or pipefitter. Depressurize and bleed down the hydraulic or fluid system completely before removing or installing any fittings. Inspect O-ring seating surfaces for nicks or contamination prior to assembly; the ORB end requires a properly sized and lubricated O-ring to achieve a leak-free seal. Follow applicable system design codes and fitting manufacturer torque guidelines for stainless steel fittings, as stainless threads are more susceptible to galling than steel if cross-threaded or over-torqued.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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