Q-393 FLUOROELASTOMER 75 Q RING

The QV70393 is an AS568-393 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 23.94 in (608.08 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 24.36 in (618.74 mm). This quad-ring provides a dual sealing band on each contact face for improved reliability.

Expect good resistance to engine and transmission fluids, chlorinated solvents, and petroleum oils and fuels. That behavior comes from the compound itself: Viton® (FKM) is specified for the industry benchmark where nitrile reaches its thermal limit and outstanding high-temperature capability. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Exposure to amines or hot water and steam will shorten service life. The profile itself contributes a parting line located away from the sealing surface and two sealing bands per contact face rather than one.

You will find this material specified across automotive fuel systems, semiconductor equipment, and chemical processing.

QV70393 ships individually. Nominal inside diameter is listed as 24 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.