-271 BLACK BUNA 50D O-RING

APG stocks the H50271, an AS568-271 black Buna-N (Nitrile) 50 Shore A O-Ring built to an inside diameter of 9.234 in (234.54 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 9.512 in (241.6 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. It resists many alcohols, petroleum-based oils, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or automotive brake fluid.

It sees regular use in agricultural equipment, hydraulic and pneumatic systems, and automotive.

Reference part number H50271 when ordering; the item is sold individually. Nominal inside diameter is listed as 9 1/4 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.