-258 BLACK BUNA 70D O-RING

H70258 is an AS568-258 black Buna-N (Nitrile) 70 Shore A O-Ring with 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). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. The compound resists greases and lubricants, propane and butane, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ozone and direct sunlight.

It sees regular use in construction equipment, fluid power, and general industrial maintenance.

Reference part number H70258 when ordering; the item is sold individually. Unit weight is approximately 5.8397 g and nominal inside diameter is listed as 6 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.