568-243 FKM 75 SQUARE CUT RINGS

This quad-ring is supplied in AS568-243 black Viton® (FKM) 70 Shore A square profile measuring an inside diameter of 4.109 in (104.37 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.387 in (111.43 mm), catalogued under part number SV70243. It seats in a standard o-ring gland while offering improved dynamic performance.

Viton® (FKM) is widely chosen for the industry benchmark where nitrile reaches its thermal limit and long service life in hot, chemically aggressive environments. It resists aggressive chemicals, aromatic hydrocarbons, and petroleum oils and fuels. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Verify compatibility before use with amines or low-molecular-weight organic acids.

It sees regular use in chemical processing, aerospace, and semiconductor equipment.

Order part number SV70243, sold individually. Nominal inside diameter is listed as 4 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.