Midland Industries 6901NWO106 90 Degree Swivel Adapter Elbow

Product Description

The MIDLAND INDUSTRIES 6901NWO106 is a 90-degree swivel adapter elbow designed for hydraulic plumbing connections in high-pressure fluid systems. It transitions from a 5/8-inch Male Adjustable O-Ring Boss (ORB) port to a 3/8-inch Female NPSM swivel end, allowing the swivel side to rotate freely for easier routing and reduced hose strain. The fitting is manufactured from steel and is rated for a maximum operating pressure of 2900 psi and an operating temperature up to 375 degrees F. The 7/8-14 x 3/8-18 thread specification covers the ORB and NPSM threads respectively. It is installed by hydraulic technicians, fluid power specialists, and plumbers working on industrial and mobile hydraulic circuits.

This fitting is suited for hydraulic systems requiring a directional change at a port connection, particularly where hose or tube routing must clear nearby components. The 5/8-inch tube dash number is 10, referencing the ORB port sizing standard used across hydraulic manifolds, pumps, cylinders, and valves. The swivel feature on the female NPSM end allows the connected hose or line to be positioned without twisting during final torquing. Typical applications include mobile equipment, industrial machinery, and hydraulic power units where compact, right-angle port connections are required.

Key Features

• 90-degree elbow geometry for right-angle hydraulic port routing
• 5/8-inch Male Adjustable O-Ring Boss inlet with 7/8-14 thread for leak-resistant port sealing
• 3/8-inch Female NPSM swivel outlet with 3/8-18 thread for flexible hose positioning
• Rated to 2900 psi maximum operating pressure
• Rated to 375 degrees F operating temperature
• Steel construction for durability in demanding hydraulic environments

Compatibility

Designed as an OEM-style hydraulic fitting for systems using Male Adjustable O-Ring Boss ports and Female NPSM swivel connections, consistent with the 6901-NWO Series of steel pipe swivel adapter elbows.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power specialist. Depressurize and fully isolate the hydraulic circuit before removing or installing any fittings. The adjustable ORB end should be backed off, positioned to the desired angle, and torqued to the port per the fitting manufacturer and system specifications. Do not overtighten the swivel nut, as NPSM threads are straight and rely on a mating seat or thread sealant rather than taper interference for sealing.