.812" C/S (13/16") (20.62 MM)

This o-ring cord stock is supplied in black Buna-N (Nitrile) 70 Shore A supplied with a cross section of 0.812 in (20.62 mm), catalogued under part number 0284812. It eliminates long lead times on large-diameter custom rings.

As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. The compound resists many alcohols, water, and greases and lubricants. Verify compatibility before use with ozone and direct sunlight or automotive brake fluid.

You will find this material specified across fluid power, construction equipment, and hydraulic and pneumatic systems.

0284812 ships by the foot. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.