Q-343 FLUOROELASTOMER 75 Q RING

Part number QV70343 is an AS568-343 black Viton® (FKM) 75 Shore A Quad-Ring measuring an inside diameter of 3.725 in (94.62 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.145 in (105.28 mm). A quad-ring seats in a standard o-ring gland while offering improved dynamic performance.

As a material, Viton® (FKM) is widely chosen for the industry benchmark where nitrile reaches its thermal limit and long service life in hot, chemically aggressive environments. This material stands up to engine and transmission fluids, chlorinated solvents, and many acids. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Applications involving amines or ketones and esters call for a different compound. 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 high-temperature process equipment, aerospace, and oil and gas.

This item is sold individually under part number QV70343. Unit weight is approximately 13.863 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.