568-336 FKM 75 SQUARE CUT RINGS

This quad-ring is supplied in AS568-336 black Viton® (FKM) 70 Shore A square profile supplied with an inside diameter of 2.85 in (72.39 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.27 in (83.06 mm), catalogued under part number SV70336. It uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.

As a material, Viton® (FKM) is valued for outstanding high-temperature capability, excellent resistance to compression set and permeation. Expect good resistance to aggressive chemicals, chlorinated solvents, and aromatic hydrocarbons. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). It is not the right choice where low-molecular-weight organic acids or hot water and steam are present.

You will find this material specified across semiconductor equipment, automotive fuel systems, and high-temperature process equipment.

SV70336 ships individually. Nominal inside diameter is listed as 2 7/8 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.