-276 BLACK BUNA 90D O-RING

Part number H90276 is an AS568-276 black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 10.984 in (278.99 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 11.262 in (286.05 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to many alcohols, propane and butane, and greases and lubricants. Buna-N (Nitrile) is valued for low compression set under sustained load and an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ketones.

It sees regular use in general industrial maintenance, agricultural equipment, and hydraulic and pneumatic systems.

H90276 ships individually. Unit weight is approximately 12.383 g and nominal inside diameter is listed as 11 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.