8.4MM CS X 219.5MM ID BLACK BUNA 70D

H8.4X219.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 219.5 mm (8.642 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 236.3 mm (9.3 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. The catalog record notes: Metric O-RING, JIS P220.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. It resists water, many alcohols, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with automotive brake fluid or strong acids.

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

Reference part number H8.4X219.5 when ordering; the item is sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.