3MM CS X 189.5MM ID BLACK BUNA 70D

The H3X189.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 189.5 mm (7.461 in), a cross section of 3 mm (0.118 in), and an outside diameter of 195.5 mm (7.7 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. The compound resists water, propane and butane, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

It sees regular use in automotive, hydraulic and pneumatic systems, and fluid power.

H3X189.5 ships individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.