Buna 70-258-Black-Pk10

Part number SB-H70258-10 is an AS568-258 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 5.984 in (151.99 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.262 in (159.05 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Additional detail on this item: 6.25IDX6"ODX.125"CS.

As a material, Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Expect good resistance to hydraulic fluids, water, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or strong acids are present.

Common environments for this compound include agricultural equipment, automotive, and construction equipment.

Order part number SB-H70258-10, sold by the bag. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.