2.5MM CS X 118MM ID BLACK BUNA 70D

APG stocks the H2.5X118, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 118 mm (4.646 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 123 mm (4.84 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The compound resists petroleum-based oils, water, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in polar solvents or strong acids.

Maintenance and OEM teams specify it across fluid power, automotive, and construction equipment.

H2.5X118 ships individually. Unit weight is approximately 2.27 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.