.312" C/S (5/16") (8 MM)

The 0284S312 is a black Buna-N (Nitrile) 50 Shore A O-Ring Cord Stock built to a cross section of 0.312 in (8 mm). This o-ring cord stock lets you fabricate a custom-size seal on site by cutting and splicing to the required circumference.

Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. This material stands up to water, greases and lubricants, and petroleum-based oils. Verify compatibility before use with ozone and direct sunlight or ketones.

Typical settings include construction equipment, fluid power, and agricultural equipment.

This item is sold by the foot under part number 0284S312. As always, verify media compatibility and operating conditions against the requirements of your specific application.