.500" C/S (1/2") (12.70 MM)

This o-ring cord stock is supplied in black Buna-N (Nitrile) 70 Shore A measuring a cross section of 0.5 in (12.7 mm), catalogued under part number 0284500. It provides continuous extruded stock for building one-off or oversized rings.

The compound resists propane and butane, greases and lubricants, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Verify compatibility before use with ketones or automotive brake fluid.

Common environments for this compound include construction equipment, fluid power, and general industrial maintenance.

Stocked as 0284500 and sold by the foot. Check the compound against your process media, pressure and temperature before committing to a design.