Buna 70-023-Black-Pk20

Part number SB-H70023-20 is an AS568-023 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 1.051 in (26.7 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.191 in (30.25 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint. This item is further identified as 1.1875IDX1.0625"ODX.0625"CS.

The compound resists hydraulic fluids, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for low compression set under sustained load, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to ozone and direct sunlight or automotive brake fluid will shorten service life.

Common environments for this compound include hydraulic and pneumatic systems, fluid power, and general industrial maintenance.

Order part number SB-H70023-20, sold by the bag. Nominal inside diameter is listed as 1 1/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.