-459 BLACK FKM 75D O-RING

This o-ring is supplied in AS568-459 black Viton® (FKM) 75 Shore A with an inside diameter of 14.975 in (380.37 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 15.525 in (394.34 mm), catalogued under part number V75459. It compresses into its gland to block fluid or gas migration across a joint.

The material holds up against engine and transmission fluids, petroleum oils and fuels, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) is known for long service life in hot, chemically aggressive environments and the industry benchmark where nitrile reaches its thermal limit. 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.

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

Stocked as V75459 and sold individually. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.