-103 BLACK BUNA 90D O-RING

Part number H90103 is an AS568-103 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 0.081 in (2.06 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.287 in (7.29 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists hydraulic fluids, propane and butane, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is known for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or polar solvents will shorten service life.

It sees regular use in construction equipment, general industrial maintenance, and automotive.

H90103 ships individually. Unit weight is approximately 0.1071 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.