8MM CS X 73MM ID BLACK BUNA 70D

Part number H8X73 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 73 mm (2.874 in), a cross section of 8 mm (0.315 in), and an outside diameter of 89 mm (3.5 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) delivers low compression set under sustained load and the most widely specified general-purpose sealing elastomer. It resists many alcohols, propane and butane, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to polar solvents or ketones will shorten service life.

You will find this material specified across agricultural equipment, general industrial maintenance, and automotive.

Reference part number H8X73 when ordering; the item is sold individually. Unit weight is approximately 15.621 g. Review your operating media and conditions against this specification before installation. 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.