3.55MM CS X 115MM ID BLACK BUNA 70D

Part number H3.55X115 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 115 mm (4.528 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 122.1 mm (4.81 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 economical choice for high-volume maintenance programs and most widely specified general-purpose sealing elastomer. Expect good resistance to petroleum-based oils, many alcohols, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or ozone and direct sunlight.

Typical settings include construction equipment, hydraulic and pneumatic systems, and automotive.

This item is sold individually under part number H3.55X115. Unit weight is approximately 4.437 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.