-904 BLACK BUNA 50D O-RING

Part number H50904 is an AS568-904 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 0.351 in (8.92 mm), a cross section of 0.072 in (1.83 mm), and an outside diameter of 0.495 in (12.57 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. The material holds up against hydraulic fluids, water, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in construction equipment, agricultural equipment, and automotive.

Stocked as H50904 and sold individually. Nominal inside diameter is listed as 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.