Q-311 FLUOROELASTOMER 75 Q RING

QV70311 is an AS568-311 black Viton® (FKM) 75 Shore A Quad-Ring built to an inside diameter of 0.537 in (13.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.957 in (24.31 mm). In service, this quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

The compound resists many acids, engine and transmission fluids, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) is known for very low compression set at elevated temperature, excellent resistance to compression set and permeation. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). The profile itself contributes two sealing bands per contact face rather than one and lower compressive load required to achieve a seal.

You will find this material specified across aerospace, oil and gas, and chemical processing.

Stocked as QV70311 and sold individually. Nominal inside diameter is listed as 9/16 inch. Check the compound against your process media, pressure and temperature before committing to a design.