Viton 75-158-Black-Pk2

APG stocks the SB-V70158-2, an AS568-158 black Viton® (FKM) 70 Shore A O-Ring measuring an inside diameter of 4.737 in (120.32 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.943 in (125.55 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint. Source specification: 0.103CSX4.737"IDX4.943"OD.

As a material, Viton® (FKM) is widely chosen for long service life in hot, chemically aggressive environments and very low compression set at elevated temperature. It resists engine and transmission fluids, chlorinated solvents, and aromatic hydrocarbons. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with ketones and esters or hot water and steam.

Maintenance and OEM teams specify it across chemical processing, oil and gas, and high-temperature process equipment.

Order part number SB-V70158-2, sold by the bag. Check the compound against your process media, pressure and temperature before committing to a design.