8.4MM CS X 209.5MM ID BLACK BUNA 70D

The H8.4X209.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 209.5 mm (8.248 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 226.3 mm (8.91 in). This o-ring compresses into its gland to block fluid or gas migration across a joint. This item is further identified as Metric O-RING, JIS P210.

It resists hydraulic fluids, water, and greases and lubricants. Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or strong acids.

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

This item is sold individually under part number H8.4X209.5. Unit weight is approximately 46.603 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.