-311 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-311 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 0.537 in (13.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.957 in (24.31 mm), catalogued under part number H70311. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The material holds up against water, propane and butane, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or automotive brake fluid call for a different compound.

Common environments for this compound include automotive, agricultural equipment, and general industrial maintenance.

Stocked as H70311 and sold individually. Unit weight is approximately 1.6642 g and nominal inside diameter is listed as 9/16 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.