Viton 75-251-Black-Pk5

The SB-V70251-5 is an AS568-251 black Viton® (FKM) 70 Shore A O-Ring supplied with an inside diameter of 5.109 in (129.77 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.387 in (136.83 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope. Source specification: 0.139CSX5.109"IDX5.387"OD.

Viton® (FKM) is specified here for outstanding high-temperature capability and long service life in hot, chemically aggressive environments. The material holds up against many acids, petroleum oils and fuels, and aromatic hydrocarbons. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). Applications involving low-molecular-weight organic acids or ketones and esters call for a different compound.

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

SB-V70251-5 ships by the bag. Nominal inside diameter is listed as 5 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.