Q-273 FLUOROELASTOMER 75 Q RING

Ordered as QV70273, this is an AS568-273 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 9.734 in (247.24 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 10.012 in (254.3 mm). The quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

Viton® (FKM) is valued for outstanding high-temperature capability and the industry benchmark where nitrile reaches its thermal limit. The material holds up against engine and transmission fluids, chlorinated solvents, and aromatic hydrocarbons. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. It is not the right choice where ketones and esters or low-molecular-weight organic acids are present. The profile itself contributes a parting line located away from the sealing surface and lower compressive load required to achieve a seal.

Common environments for this compound include high-temperature process equipment, semiconductor equipment, and automotive fuel systems.

Order part number QV70273, sold individually. Nominal inside diameter is listed as 9 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.