-021 BLACK FKM 75D O-RING

Ordered as V70021, this is an AS568-021 black Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 0.926 in (23.52 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.066 in (27.08 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists engine and transmission fluids, aggressive chemicals, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) is valued for 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). Applications involving ketones and esters or amines call for a different compound.

You will find this material specified across automotive fuel systems, high-temperature process equipment, and oil and gas.

V70021 ships individually. Unit weight is approximately 0.3658 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.