4MM CS X 110MM ID BLACK BUNA 70D

H4X110 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 110 mm (4.331 in), a cross section of 4 mm (0.157 in), and an outside diameter of 118 mm (4.65 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists many alcohols, hydraulic fluids, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) offers reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where polar solvents or ketones are present.

You will find this material specified across construction equipment, fluid power, and automotive.

Stocked as H4X110 and sold individually. Unit weight is approximately 5.45 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.