*4355-514AD MINNESOTA RUBBER QUAD RING

VQ4355 is an AS568-355 black Viton® (FKM) 75 Shore A quad profile Quad-Ring with an inside diameter of 5.225 in (132.72 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.645 in (143.38 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.

This material stands up to chlorinated solvents, many acids, and engine and transmission fluids. That behavior comes from the compound itself: Viton® (FKM) delivers long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Exposure to low-molecular-weight organic acids or hot water and steam will shorten service life.

Maintenance and OEM teams specify it across chemical processing, high-temperature process equipment, and semiconductor equipment.

Stocked as VQ4355 and sold individually. Nominal inside diameter is listed as 5 1/4 inch. 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.