568-434 FKM 75 SQUARE CUT RINGS

This square-cut ring is supplied in AS568-434 black Viton® (FKM) 70 Shore A supplied with an inside diameter of 5.6 in (142.24 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.15 in (156.21 mm), catalogued under part number SV70434. It presents a flat rectangular section that cannot roll or twist in its groove, making it a dependable static seal.

This material stands up to many acids, aggressive chemicals, and aromatic hydrocarbons. Viton® (FKM) is valued for long service life in hot, chemically aggressive environments, 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 low-molecular-weight organic acids or hot water and steam. The profile itself contributes simple lathe-cut manufacture at low tooling cost and a rectangular section that will not roll in the groove. Note that a square section is less suited to high-speed rotary service, where the larger contact area raises friction and heat.

It sees regular use in aerospace, high-temperature process equipment, and automotive fuel systems.

SV70434 ships individually. Nominal inside diameter is listed as 5 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.