2.7MM CS X 8.9MM ID BLACK BUNA 70D

Part number H2.7X8.9 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 8.9 mm (0.35 in), a cross section of 2.7 mm (0.106 in), and an outside diameter of 14.3 mm (0.56 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Buna-N (Nitrile) is valued for low compression set under sustained load and an economical choice for high-volume maintenance programs. The material holds up against greases and lubricants, petroleum-based oils, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or ketones.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, construction equipment, and fluid power.

This item is sold individually under part number H2.7X8.9. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.