Midland Industries 6900O44 Straight Swivel Adapter Steel

Product Description

The MIDLAND INDUSTRIES 6900O44 is a straight swivel adapter designed for hydraulic line connections in demanding fluid power systems. It connects a 1/4-inch Male O-Ring Boss (ORB) port on one end to a 1/4-inch Female NPSM Swivel on the other, allowing rotational movement during installation to prevent hose and line twist. Constructed from steel, it carries a maximum operating pressure of 4500 psi and is rated for service up to 375 degrees F. The 7/16-20 x 1/4-18 thread configuration is standard for this adapter class. Hydraulic technicians and fluid power mechanics install this fitting when routing lines to fixed ports where alignment must be set without stressing the assembly.

This adapter is suited for industrial hydraulic circuits, mobile equipment hydraulics, and fluid power plumbing where an O-Ring Boss port must transition to an NPSM swivel connection. The swivel design is especially useful in tight routing situations where the downstream line cannot be rotated to achieve a leak-free assembly. It falls within the 6900 Series of Male O-Ring to Female NPSM Swivel adapters and is appropriate for both OEM fabrication and field repair applications.

Key Features

• Straight configuration with swivel function on the Female NPSM end for twist-free line routing
• Rated to 4500 psi maximum operating pressure for high-pressure hydraulic service
• Temperature rating up to 375 degrees F supports demanding hydraulic fluid environments
• Steel construction for durability in industrial and mobile hydraulic applications
• 7/16-20 x 1/4-18 thread specification for precise port compatibility
• Compact profile: approximately 1.4 inches length, 0.8 inches width, 0.75 inches height

Compatibility

Designed as an OEM-style replacement or new-installation fitting for hydraulic systems requiring a 1/4-inch Male O-Ring Boss to 1/4-inch Female NPSM Swivel straight adapter in the 6900 Series configuration.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power mechanic. Depressurize and lock out the hydraulic system completely before removing or installing any fittings. Inspect the O-Ring Boss port and sealing O-ring for damage before assembly, as the ORB connection relies on O-ring face seal integrity for leak-free service. Follow applicable fluid power standards and equipment manufacturer torque guidelines when making up the connection.