3MM CS X 139.5MM ID BLACK BUNA 70D

H3X139.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 139.5 mm (5.492 in), a cross section of 3 mm (0.118 in), and an outside diameter of 145.5 mm (5.73 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to many alcohols, water, and greases and lubricants. Buna-N (Nitrile) offers strong abrasion and tear resistance, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or ozone and direct sunlight.

Typical settings include general industrial maintenance, agricultural equipment, and construction equipment.

H3X139.5 ships individually. Review your operating media and conditions against this specification before installation.