Q-456 FLUOROELASTOMER 75 Q RING

This quad-ring is supplied in AS568-456 black Viton® (FKM) 75 Shore A supplied with an inside diameter of 13.475 in (342.27 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 14.025 in (356.24 mm), catalogued under part number QV70456. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

This material stands up to petroleum oils and fuels, engine and transmission fluids, and aromatic hydrocarbons. That behavior comes from the compound itself: Viton® (FKM) is specified for very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where hot water and steam or amines are present. The profile itself contributes lower compressive load required to achieve a seal and a parting line located away from the sealing surface.

It sees regular use in automotive fuel systems, high-temperature process equipment, and aerospace.

QV70456 ships individually. Unit weight is approximately 83.06 g and nominal inside diameter is listed as 13 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.