10MM CS X 120MM ID BLACK BUNA 70D

Part number H10X120 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 120 mm (4.724 in), a cross section of 10 mm (0.394 in), and an outside diameter of 140 mm (5.51 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists water, propane and butane, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for strong abrasion and tear resistance, low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

Maintenance and OEM teams specify it across agricultural equipment, general industrial maintenance, and fluid power.

Stocked as H10X120 and sold individually. Unit weight is approximately 39.68 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.