-027 BLACK BUNA 90D O-RING

Part number H90027 is an AS568-027 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 1.301 in (33.05 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.441 in (36.6 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists propane and butane, greases and lubricants, and water. Buna-N (Nitrile) is specified for low compression set under sustained load, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ozone and direct sunlight call for a different compound.

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

Stocked as H90027 and sold individually. Unit weight is approximately 0.368 g and nominal inside diameter is listed as 1 5/16 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.