4.5MM CS X 12MM ID BLACK BUNA 70D

APG stocks the H4.5X12, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 12 mm (0.472 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 21 mm (0.83 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to propane and butane, greases and lubricants, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or polar solvents.

You will find this material specified across automotive, general industrial maintenance, and fluid power.

H4.5X12 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.