5.3MM CS X 90MM ID BLACK BUNA 70D

Part number H5.3X90 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 90 mm (3.543 in), a cross section of 5.3 mm (0.209 in), and an outside diameter of 100.6 mm (3.96 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and economical choice for high-volume maintenance programs. The material holds up against water, greases and lubricants, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in strong acids or polar solvents.

Typical settings include construction equipment, fluid power, and hydraulic and pneumatic systems.

Order part number H5.3X90, sold individually. Unit weight is approximately 8.2492 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. 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.