-411 BLACK CHEMOURS VITON 75D O-RING

APG stocks the VITON75411, an AS568-411 black Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 2.725 in (69.22 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.275 in (83.19 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists many acids, chlorinated solvents, and engine and transmission fluids. That behavior comes from the compound itself: Viton® (FKM) delivers very low compression set at elevated temperature and the industry benchmark where nitrile reaches its thermal limit. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Applications involving low-molecular-weight organic acids or amines call for a different compound.

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

Reference part number VITON75411 when ordering; the item is sold individually. Unit weight is approximately 16.86 g and nominal inside diameter is listed as 2 3/4 inch. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.