-203 BLACK FKM 75D O-RING

APG stocks the V70203, an AS568-203 black Viton® (FKM) 75 Shore A O-Ring built to an inside diameter of 0.296 in (7.52 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.574 in (14.58 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

It resists petroleum oils and fuels, many acids, and engine and transmission fluids. That behavior comes from the compound itself: Viton® (FKM) is specified 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 is not the right choice where low-molecular-weight organic acids or ketones and esters are present.

Typical settings include high-temperature process equipment, chemical processing, and aerospace.

This item is sold individually under part number V70203. Unit weight is approximately 0.6317 g and nominal inside diameter is listed as 5/16 inch. 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.