5.7MM CS X 52.3MM ID BLACK BUNA 70D

APG stocks the H5.7X52.3, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 52.3 mm (2.059 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 63.7 mm (2.51 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

The compound resists petroleum-based oils, propane and butane, and many alcohols. Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or strong acids call for a different compound.

Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and agricultural equipment.

H5.7X52.3 ships individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.