3MM CS X 37MM ID BLACK BUNA 70D

H3X37 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 37 mm (1.457 in), a cross section of 3 mm (0.118 in), and an outside diameter of 43 mm (1.69 in). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists propane and butane, many alcohols, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ozone and direct sunlight or strong acids call for a different compound.

It sees regular use in automotive, fluid power, and general industrial maintenance.

H3X37 ships individually. Unit weight is approximately 1.118 g. 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.