5.3MM CS X 82.5MM ID BLACK BUNA 70D

H5.3X82.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 82.5 mm (3.248 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 93.1 mm (3.67 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against water, propane and butane, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to ozone and direct sunlight or automotive brake fluid will shorten service life.

It sees regular use in construction equipment, agricultural equipment, and fluid power.

Reference part number H5.3X82.5 when ordering; the item is sold individually. Unit weight is approximately 7.6918 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.