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The MIDLAND INDUSTRIES 6900O108 is a straight swivel adapter designed for hydraulic line connections in industrial and mobile equipment applications. It connects a 5/8-inch Male O-Ring Boss port to a 1/2-inch Female NPSM Swivel port, providing a leak-resistant, rotatable joint that simplifies hose routing and reduces stress on fittings. The adapter is constructed from steel and rated for a maximum operating pressure of 2900 psi and temperatures up to 375 degrees F. The thread configuration is 7/8-14 on the ORB side and 1/2-14 on the NPSM side. Hydraulic technicians and pipefitters working on mobile machinery, industrial presses, or fluid-power systems rely on this fitting for reliable, serviceable connections.
The 6900O108 is suited for hydraulic systems in both mobile and stationary equipment where a male O-Ring Boss port must be adapted to a female NPSM swivel connection. This fitting is part of the MIDLAND INDUSTRIES 6900 Series, which covers male O-Ring Boss to female NPSM swivel configurations. Typical installations include agricultural machinery, construction equipment, hydraulic power units, and industrial fluid systems that operate within the pressure and temperature ratings of this adapter.
Designed as an OEM-style hydraulic fitting for systems using Male O-Ring Boss to Female NPSM Swivel connections, consistent with the MIDLAND INDUSTRIES 6900 Series steel swivel adapter line.
Installation should be performed by a qualified hydraulic technician or pipefitter. Depressurize and isolate the hydraulic circuit fully before removing or installing any fitting. Apply appropriate thread sealant or verify the O-ring is properly seated on the ORB side before torquing. Verify that operating pressure and temperature conditions of the system do not exceed the rated values of this fitting.
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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