Q-282 FLUOROELASTOMER 75 Q RING

Part number QV70282 is an AS568-282 black Viton® (FKM) 75 Shore A Quad-Ring supplied with an inside diameter of 15.955 in (405.26 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 16.233 in (412.32 mm). A quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

Viton® (FKM) is specified here for outstanding high-temperature capability and industry benchmark where nitrile reaches its thermal limit. It resists engine and transmission fluids, aromatic hydrocarbons, and many acids. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. It should not be specified for service in ketones and esters or amines. The profile itself contributes lower compressive load required to achieve a seal and two sealing bands per contact face rather than one.

Maintenance and OEM teams specify it across aerospace, automotive fuel systems, and semiconductor equipment.

Reference part number QV70282 when ordering; the item is sold individually. Nominal inside diameter is listed as 16 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.