-454 BROWN FKM 75D O-RING

APG stocks the VB75454, an AS568-454 brown Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 12.475 in (316.87 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 13.025 in (330.84 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

The material holds up against aromatic hydrocarbons, aggressive chemicals, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) is widely chosen for the industry benchmark where nitrile reaches its thermal limit and long service life in hot, chemically aggressive environments. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Applications involving low-molecular-weight organic acids or ketones and esters call for a different compound.

Maintenance and OEM teams specify it across oil and gas, high-temperature process equipment, and automotive fuel systems.

This item is sold individually under part number VB75454. Unit weight is approximately 81.05 g and nominal inside diameter is listed as 12 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.