3.1MM CS X 79.4MM ID BLACK BUNA 90D

H90M3.1X79.4 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 79.4 mm (3.126 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 85.6 mm (3.37 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. The catalog record notes: Metric O-RING, JIS G80.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. This material stands up to propane and butane, greases and lubricants, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

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

H90M3.1X79.4 ships individually. Unit weight is approximately 2.7469 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.