3MM CS X 255MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 255 mm (10.039 in), a cross section of 3 mm (0.118 in), and an outside diameter of 261 mm (10.28 in), catalogued under part number H3X255. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists many alcohols, propane and butane, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

You will find this material specified across hydraulic and pneumatic systems, construction equipment, and agricultural equipment.

Order part number H3X255, sold individually. Unit weight is approximately 7.0482 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.