-376 BLACK BUNA 50D O-RING

Ordered as H50376, this is an AS568-376 black Buna-N (Nitrile) 50 Shore A O-Ring measuring an inside diameter of 9.725 in (247.02 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 10.145 in (257.68 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. The material holds up against greases and lubricants, many alcohols, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or strong acids will shorten service life.

You will find this material specified across hydraulic and pneumatic systems, general industrial maintenance, and construction equipment.

Stocked as H50376 and sold individually. Nominal inside diameter is listed as 9 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.