3MM CS X 12MM ID BLACK BUNA 70D

Ordered as H3X12, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 12 mm (0.472 in), a cross section of 3 mm (0.118 in), and an outside diameter of 18 mm (0.71 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Expect good resistance to petroleum-based oils, water, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or ketones will shorten service life.

Common environments for this compound include general industrial maintenance, agricultural equipment, and fluid power.

This item is sold individually under part number H3X12. Unit weight is approximately 0.422 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.