-156 BROWN FKM 75D O-RING

APG stocks the VB75156, an AS568-156 brown Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 4.237 in (107.62 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.443 in (112.85 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Viton® (FKM) delivers long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. The compound resists chlorinated solvents, engine and transmission fluids, and aromatic hydrocarbons. Rated temperature range runs from -15°F (-26.1°C) to 400°F (204.4°C) in continuous service. It is not the right choice where amines or ketones and esters are present.

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

This item is sold individually under part number VB75156. Unit weight is approximately 3.7705 g and nominal inside diameter is listed as 4 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.