3MM CS X 260MM ID BLACK BUNA 70D

The H3X260 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 260 mm (10.236 in), a cross section of 3 mm (0.118 in), and an outside diameter of 266 mm (10.47 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists many alcohols, petroleum-based oils, 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. 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 ketones are present.

Typical settings include agricultural equipment, construction equipment, and automotive.

Reference part number H3X260 when ordering; the item is sold individually. Unit weight is approximately 7.0573 g. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.