4MM CS X 240MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 240 mm (9.449 in), a cross section of 4 mm (0.157 in), and an outside diameter of 248 mm (9.76 in), catalogued under part number H4X240. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to petroleum-based oils, propane and butane, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where ozone and direct sunlight or strong acids are present.

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

Order part number H4X240, sold individually. 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.