3.55MM CS X 95MM ID BLACK BUNA 70D

APG stocks the H3.55X95, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 95 mm (3.74 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 102.1 mm (4.02 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists hydraulic fluids, greases and lubricants, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or ketones will shorten service life.

You will find this material specified across automotive, agricultural equipment, and hydraulic and pneumatic systems.

H3.55X95 ships individually. Unit weight is approximately 3.7507 g. Check the compound against your process media, pressure and temperature before committing to a design. 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.