2.4MM CS X 20.8MM ID BLACK BUNA 90D

Ordered as H90M2.4X20.8, this is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 20.8 mm (0.819 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 25.6 mm (1.01 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Source specification: Metric O-RING, JIS P21.

As a material, Buna-N (Nitrile) is specified for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. The material holds up against propane and butane, greases and lubricants, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or polar solvents are present.

Common environments for this compound include automotive, hydraulic and pneumatic systems, and construction equipment.

H90M2.4X20.8 ships individually. Unit weight is approximately 0.4635 g. Application requirements vary, so validate compatibility with your process conditions prior to 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.