-021 BLACK FKM 90D O-RING

V90021 is an AS568-021 black Viton® (FKM) 90 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). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists aromatic hydrocarbons, aggressive chemicals, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) is known for outstanding high-temperature capability and long service life in hot, chemically aggressive environments. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It is not the right choice where low-molecular-weight organic acids or hot water and steam are present.

Common environments for this compound include high-temperature process equipment, semiconductor equipment, and oil and gas.

Order part number V90021, sold individually. Unit weight is approximately 0.3689 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.