3MM CS X 205MM ID BLACK BUNA 70D

APG stocks the H3X205, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 205 mm (8.071 in), a cross section of 3 mm (0.118 in), and an outside diameter of 211 mm (8.31 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

It resists petroleum-based oils, greases and lubricants, and many alcohols. Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ketones.

Maintenance and OEM teams specify it across general industrial maintenance, hydraulic and pneumatic systems, and fluid power.

Order part number H3X205, sold individually. Unit weight is approximately 5.641 g. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.