568-248 FKM 75 SQUARE CUT RINGS

APG stocks the SV70248, an AS568-248 black Viton® (FKM) 70 Shore A square profile Quad-Ring with an inside diameter of 4.734 in (120.24 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.012 in (127.3 mm). A quad-ring resists spiral failure in reciprocating service thanks to its multi-lobe geometry.

As a material, Viton® (FKM) offers the industry benchmark where nitrile reaches its thermal limit and very low compression set at elevated temperature. Expect good resistance to aggressive chemicals, engine and transmission fluids, and aromatic hydrocarbons. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C).

You will find this material specified across semiconductor equipment, high-temperature process equipment, and oil and gas.

Order part number SV70248, sold individually. Nominal inside diameter is listed as 4 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.