5MM CS X 25.5MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 25.5 mm (1.004 in), a cross section of 5 mm (0.197 in), and an outside diameter of 35.5 mm (1.4 in), catalogued under part number H2.5X25.5. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The compound resists petroleum-based oils, many alcohols, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for 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 should not be specified for service in ozone and direct sunlight or ketones.

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

H2.5X25.5 ships individually. Unit weight is approximately 0.541 g. Review your operating media and conditions against this specification before installation.