2MM CS X 51MM ID BLACK BUNA 70D

APG stocks the H2X51, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 51 mm (2.008 in), a cross section of 2 mm (0.079 in), and an outside diameter of 55 mm (2.17 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The compound resists hydraulic fluids, many alcohols, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ketones call for a different compound.

Common environments for this compound include automotive, construction equipment, and agricultural equipment.

Order part number H2X51, sold individually. Unit weight is approximately 0.6388 g. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.