Buna 70-345-Black-Pk25

APG stocks the SB-H70345-25, an AS568-345 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 3.975 in (100.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.395 in (111.63 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Additional detail on this item: 4.375IDX4"ODX.1875"CS.

As a material, Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists water, propane and butane, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or polar solvents will shorten service life.

Typical settings include automotive, general industrial maintenance, and hydraulic and pneumatic systems.

SB-H70345-25 ships by the bag. Nominal inside diameter is listed as 4 inch. Review your operating media and conditions against this specification before installation.