-144 BLACK BUNA 90D O-RING

Part number H90144 is an AS568-144 black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 2.487 in (63.17 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.693 in (68.4 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 specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to petroleum-based oils, greases and lubricants, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or polar solvents call for a different compound.

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

This item is sold individually under part number H90144. Unit weight is approximately 1.5729 g. 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.