Midland Industries FF12MSAE Flat Face Sae O-ring Plug

Product Description

The MIDLAND INDUSTRIES FF12MSAE is a flat face SAE O-ring plug designed for hydraulic systems that require a leak-free, low-spill connection during disconnection. Built from steel with a zinc-plated finish for corrosion resistance, this plug handles maximum operating pressures up to 4000 psi and operates across a temperature range of -65 to 250 degrees F. The 1/2-inch body pairs with a 1/2-inch female O-ring boss port. It is installed by hydraulic technicians and fluid power professionals in mobile and industrial hydraulic circuits where contamination control and pressure retention matter.

This plug is used in hydraulic quick disconnect applications where a flush face ISO or SAE O-ring boss thread interface is required. The flat face design minimizes fluid spillage and air inclusion when the circuit is opened for service or component swap. Typical installations include mobile equipment, agricultural machinery, construction equipment, and industrial hydraulic power units. It is suited for both OEM assembly and field service replacement on systems using SAE O-ring boss threaded ports.

Key Features

• Flat face design reduces fluid spillage and air ingestion during disconnect
• Maximum operating pressure rated to 4000 psi
• Operating temperature range of -65 to 250 degrees F
• Steel construction with zinc-plated finish for corrosion resistance
• 1/2-inch body with 1/2-inch female O-ring boss connection
• Conforms to SAE O-ring boss and flush face ISO interface standards

Compatibility

Designed as an OEM-style replacement or service plug for hydraulic circuits using 1/2-inch SAE O-ring boss threaded ports with flush face ISO quick disconnect interfaces.

Installation Notes

Installation should be performed by a qualified hydraulic technician. Before installing or removing this plug, depressurize the hydraulic circuit completely and relieve any stored energy in accumulators. Verify the O-ring is seated and undamaged before torquing the plug into the boss port. Follow applicable IFGC and equipment manufacturer torque guidelines for the specific port material and thread size.