3MM CS X 77MM ID BLACK BUNA 70D

Ordered as H3X77, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 77 mm (3.031 in), a cross section of 3 mm (0.118 in), and an outside diameter of 83 mm (3.27 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and low compression set under sustained load. It resists many alcohols, petroleum-based oils, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

It sees regular use in automotive, hydraulic and pneumatic systems, and construction equipment.

H3X77 ships individually. Unit weight is approximately 2.11 g. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.