2.5MM CS X 47MM ID BLACK BUNA 70D

Part number H2.5X47 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 47 mm (1.85 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 52 mm (2.05 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

It resists greases and lubricants, hydraulic fluids, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, 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 polar solvents or automotive brake fluid are present.

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

Reference part number H2.5X47 when ordering; the item is sold individually. Unit weight is approximately 0.9317 g. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.