-446 BLACK BUNA 90D O-RING

Part number H90446 is an AS568-446 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 8.475 in (215.27 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 9.025 in (229.24 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. The material holds up against hydraulic fluids, many alcohols, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ketones or polar solvents.

Common environments for this compound include automotive, general industrial maintenance, and hydraulic and pneumatic systems.

Order part number H90446, sold individually. Unit weight is approximately 37.468 g and nominal inside diameter is listed as 8 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.