Midland Industries SS6408-HH-02 Hollow Hex Plug 1/8 in Orb

Product Description

The MIDLAND INDUSTRIES SS6408-HH-02 is a hollow hex plug with a 1/8-inch male O-Ring Boss (ORB) connection, machined from 316 stainless steel. This fitting is used to cap or plug an ORB port while allowing a small passage through the hex body. At 0.401 inches in length and weighing just 0.006 pounds, it is a compact hardware item rated for operating temperatures up to 1000 degrees F. The 5/16-24 thread and 1/8-inch hex drive make it compatible with standard SAE O-Ring Boss port configurations. Plumbers, hydraulic technicians, and fluid-system installers working with high-temperature or corrosive media will find this fitting appropriate for demanding service environments.

This plug is designed for use in SAE O-Ring Boss port applications across hydraulic systems, fluid transfer lines, and process piping where a stainless steel fitting is required. The hollow hex body design allows instrument or gauge access while plugging unused ports. Typical installations include industrial fluid systems, high-temperature pneumatic lines, and marine or chemical service environments where 316 stainless steel is specified for corrosion resistance.

Key Features

• 316 stainless steel construction for corrosion resistance in demanding service environments
• 1/8-inch male O-Ring Boss connection for leak-resistant SAE port sealing
• Rated for operating temperatures up to 1000 degrees F
• Compact at 0.401 inches in length and 0.006 pounds
• 5/16-24 thread with 1/8-inch hex drive for precise torque application
• Hollow hex body design for instrument or gauge port access

Compatibility

Designed as an OEM-style replacement or service fitting for SAE O-Ring Boss port applications requiring a 1/8-inch male ORB hollow hex plug in 316 stainless steel.

Installation Notes

This fitting is typically installed by licensed plumbers, hydraulic technicians, or industrial pipefitters. Depressurize and drain the system completely before removing or installing any port plug. Ensure the mating O-Ring Boss port is clean and the O-ring is properly seated before tightening. Reference applicable industry standards such as SAE J1926 for O-Ring Boss port torque and sealing requirements.