2.5MM CS X 21MM ID BLACK BUNA 70D

The H2.5X21 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 21 mm (0.827 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 26 mm (1.02 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against greases and lubricants, propane and butane, and many alcohols. Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ozone and direct sunlight.

Typical settings include fluid power, construction equipment, and automotive.

Reference part number H2.5X21 when ordering; the item is sold individually. Unit weight is approximately 0.4572 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.