568-435 FKM 75 SQUARE CUT RINGS

Ordered as SV70435, this is an AS568-435 black Viton® (FKM) 70 Shore A square profile Quad-Ring supplied with an inside diameter of 5.725 in (145.42 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.275 in (159.39 mm). The quad-ring provides a dual sealing band on each contact face for improved reliability.

The compound resists petroleum oils and fuels, many acids, and chlorinated solvents. Viton® (FKM) is known for the industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with amines or hot water and steam.

Common environments for this compound include aerospace, high-temperature process equipment, and oil and gas.

SV70435 ships individually. Nominal inside diameter is listed as 5 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.