Q-203 FLUOROELASTOMER 75 Q RING

This quad-ring is supplied in AS568-203 black Viton® (FKM) 75 Shore A with 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), catalogued under part number QV70203. It delivers lower friction and better sealing stability than a comparable round-section o-ring.

Expect good resistance to engine and transmission fluids, petroleum oils and fuels, and many acids. Viton® (FKM) is known for long service life in hot, chemically aggressive environments and outstanding high-temperature capability. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). The profile itself contributes resistance to the spiral twisting that defeats round-section rings and lower compressive load required to achieve a seal.

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

Stocked as QV70203 and sold individually. Nominal inside diameter is listed as 5/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.