-451 BROWN FKM 90D O-RING

This o-ring is supplied in AS568-451 brown Viton® (FKM) 90 Shore A built to an inside diameter of 10.975 in (278.77 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 11.525 in (292.74 mm), catalogued under part number VB90451. It creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists petroleum oils and fuels, many acids, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) is valued for outstanding high-temperature capability 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). Verify compatibility before use with hot water and steam or amines.

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

Stocked as VB90451 and sold individually. Nominal inside diameter is listed as 11 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.