3.1MM CS X 54.4MM ID BLACK BUNA 90D

H90M3.1X54.4 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 54.4 mm (2.142 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 60.6 mm (2.39 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies. Source specification: Metric O-RING, JIS G55.

As a material, Buna-N (Nitrile) is known for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. This material stands up to petroleum-based oils, greases and lubricants, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or strong acids will shorten service life.

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

H90M3.1X54.4 ships individually. Unit weight is approximately 1.9131 g. Review your operating media and conditions against this specification before installation. 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.