568-121 FKM 75 SQUARE CUT RINGS

Part number SV70121 is an AS568-121 black Viton® (FKM) 70 Shore A square profile Quad-Ring with an inside diameter of 1.049 in (26.64 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.255 in (31.88 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.

Viton® (FKM) is known for long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. It resists engine and transmission fluids, aggressive chemicals, and aromatic hydrocarbons. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C).

Maintenance and OEM teams specify it across automotive fuel systems, semiconductor equipment, and aerospace.

This item is sold individually under part number SV70121. Nominal inside diameter is listed as 1 1/16 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.