5.7MM CS X 289.3MM ID BLACK BUNA 70D

The H5.7X289.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 289.3 mm (11.39 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 300.7 mm (11.84 in). This o-ring remains the most cost-effective sealing element available for pressurized assemblies. Source specification: Metric O-RING, JIS G290.

It resists greases and lubricants, many alcohols, and water. Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or polar solvents.

You will find this material specified across hydraulic and pneumatic systems, automotive, and fluid power.

Order part number H5.7X289.3, sold individually. Unit weight is approximately 28.66 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.