-254 BROWN FKM 75D O-RING

Part number VB75254 is an AS568-254 brown Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 5.484 in (139.29 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.762 in (146.35 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Expect good resistance to aromatic hydrocarbons, petroleum oils and fuels, and chlorinated solvents. That behavior comes from the compound itself: Viton® (FKM) delivers long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Exposure to ketones and esters or low-molecular-weight organic acids will shorten service life.

Common environments for this compound include semiconductor equipment, chemical processing, and high-temperature process equipment.

Reference part number VB75254 when ordering; the item is sold individually. Unit weight is approximately 8.9064 g and nominal inside diameter is listed as 5 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. 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.