568-372 FKM 75 SQUARE CUT RINGS

SV70372 is an AS568-372 black Viton® (FKM) 70 Shore A square profile Quad-Ring measuring an inside diameter of 8.725 in (221.62 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.145 in (232.28 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.

As a material, Viton® (FKM) is widely chosen for very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. The material holds up against many acids, chlorinated solvents, and petroleum oils and fuels. Continuous operating temperature is published at -15°F (-26.1°C) to 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 oil and gas, high-temperature process equipment, and semiconductor equipment.

Stocked as SV70372 and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.