1.2MM CS X 76MM ID BLACK BUNA 70D

H1.2X76 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 76 mm (2.992 in), a cross section of 1.2 mm (0.047 in), and an outside diameter of 78.4 mm (3.09 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against hydraulic fluids, many alcohols, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is known for low compression set under sustained load, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ketones or ozone and direct sunlight are present.

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

Reference part number H1.2X76 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.