-212 BLACK FKM 90D O-RING

APG stocks the V90212, an AS568-212 black Viton® (FKM) 90 Shore A O-Ring with an inside diameter of 0.859 in (21.82 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.137 in (28.88 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists engine and transmission fluids, aromatic hydrocarbons, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) delivers very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in amines or ketones and esters.

You will find this material specified across oil and gas, aerospace, and automotive fuel systems.

This item is sold individually under part number V90212. Unit weight is approximately 1.481 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.