3.55MM CS X 82.5MM ID BLACK BUNA 70D

Part number H3.55X82.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 82.5 mm (3.248 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 89.6 mm (3.53 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The material holds up against water, many alcohols, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where polar solvents or automotive brake fluid are present.

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

Order part number H3.55X82.5, sold individually. Unit weight is approximately 3.3099 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.