-143 BLACK FKM 90D O-RING

This o-ring is supplied in AS568-143 black Viton® (FKM) 90 Shore A with an inside diameter of 2.425 in (61.6 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.631 in (66.83 mm), catalogued under part number V90143. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to engine and transmission fluids, aggressive chemicals, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for long service life in hot, chemically aggressive environments and outstanding high-temperature capability. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C).

It sees regular use in high-temperature process equipment, semiconductor equipment, and aerospace.

Stocked as V90143 and sold individually. Unit weight is approximately 2.081 g and nominal inside diameter is listed as 2 7/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.