Viton 75-241-Black-Pk5

Ordered as SB-V70241-5, this is an AS568-241 black Viton® (FKM) 70 Shore A O-Ring measuring an inside diameter of 3.859 in (98.02 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.137 in (105.08 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Supplementary detail from the product record: 0.139CSX3.859"IDX4.137"OD.

The material holds up against petroleum oils and fuels, many acids, and aggressive chemicals. Viton® (FKM) is known for excellent resistance to compression set and permeation, 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 amines or hot water and steam will shorten service life.

You will find this material specified across aerospace, semiconductor equipment, and chemical processing.

Order part number SB-V70241-5, sold by the bag. Nominal inside diameter is listed as 3 7/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.