2.5MM CS X 78MM ID BLACK BUNA 70D

Ordered as H2.5X78, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 78 mm (3.071 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 83 mm (3.27 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Expect good resistance to water, greases and lubricants, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or automotive brake fluid call for a different compound.

Typical settings include construction equipment, general industrial maintenance, and fluid power.

Order part number H2.5X78, sold individually. Unit weight is approximately 1.55 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.