4MM CS X 105MM ID BLACK BUNA 70D

H4X105 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 105 mm (4.134 in), a cross section of 4 mm (0.157 in), and an outside diameter of 113 mm (4.45 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

The material holds up against water, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ozone and direct sunlight or polar solvents call for a different compound.

You will find this material specified across automotive, fluid power, and hydraulic and pneumatic systems.

H4X105 ships individually. Unit weight is approximately 5.3456 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.