2MM CS X 81MM ID BLACK BUNA 70D

The H2X81 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 81 mm (3.189 in), a cross section of 2 mm (0.079 in), and an outside diameter of 85 mm (3.35 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to water, propane and butane, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or automotive brake fluid.

Typical settings include automotive, general industrial maintenance, and agricultural equipment.

Reference part number H2X81 when ordering; the item is sold individually. Unit weight is approximately 0.0011 g. 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.