-475 BROWN FKM 90D O-RING

Part number VB90475 is an AS568-475 brown Viton® (FKM) 90 Shore A O-Ring with an inside diameter of 25.94 in (658.88 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 26.49 in (672.85 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists petroleum oils and fuels, many acids, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) offers the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Verify compatibility before use with amines or ketones and esters.

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

Reference part number VB90475 when ordering; the item is sold individually. Nominal inside diameter is listed as 26 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.