Q-042 FLUOROELASTOMER 75 Q RING

QV70042 is an AS568-042 black Viton® (FKM) 75 Shore A Quad-Ring with an inside diameter of 3.239 in (82.27 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.379 in (85.83 mm). In service, this quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Viton® (FKM) is widely chosen for very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. The material holds up against aggressive chemicals, many acids, and petroleum oils and fuels. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). The profile itself contributes lower compressive load required to achieve a seal and resistance to the spiral twisting that defeats round-section rings.

Common environments for this compound include automotive fuel systems, semiconductor equipment, and oil and gas.

Reference part number QV70042 when ordering; the item is sold individually. Unit weight is approximately 1.4417 g and nominal inside diameter is listed as 3 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.