3MM CS X 185MM ID BLACK BUNA 70D

H3X185 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 185 mm (7.283 in), a cross section of 3 mm (0.118 in), and an outside diameter of 191 mm (7.52 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for low compression set under sustained load and economical choice for high-volume maintenance programs. Expect good resistance to greases and lubricants, many alcohols, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Maintenance and OEM teams specify it across fluid power, construction equipment, and general industrial maintenance.

This item is sold individually under part number H3X185. Unit weight is approximately 5.182 g. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.