4242-514AD MINNESOTA RUBBER QUAD RING

APG stocks the VQ4242, an AS568-242 black Viton® (FKM) 75 Shore A quad profile Quad-Ring supplied with an inside diameter of 3.984 in (101.19 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.262 in (108.25 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.

Viton® (FKM) is specified here for industry benchmark where nitrile reaches its thermal limit and very low compression set at elevated temperature. The compound resists chlorinated solvents, engine and transmission fluids, and many acids. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Applications involving hot water and steam or amines call for a different compound.

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

Stocked as VQ4242 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.