5.7MM CS X 204.2MM ID BLACK BUNA 70D

APG stocks the H5.7X204.2, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 204.2 mm (8.039 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 215.6 mm (8.49 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against water, petroleum-based oils, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

It sees regular use in construction equipment, fluid power, and agricultural equipment.

Order part number H5.7X204.2, sold individually. Unit weight is approximately 20.515 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.