8.4MM CS X 214.5MM ID BLACK BUNA 70D

APG stocks the H8.4X214.5, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 214.5 mm (8.445 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 231.3 mm (9.11 in). An o-ring compresses into its gland to block fluid or gas migration across a joint. Source specification: Metric O-RING, JIS P215.

Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. It resists greases and lubricants, many alcohols, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ketones or strong acids.

It sees regular use in construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.

This item is sold individually under part number H8.4X214.5. Unit weight is approximately 47.988 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.