5MM CS X 285MM ID BLACK BUNA 70D

APG stocks the H5X285, a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 285 mm (11.22 in), a cross section of 5 mm (0.197 in), and an outside diameter of 295 mm (11.61 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

It resists greases and lubricants, many alcohols, and propane and butane. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, reliable performance in both static and dynamic service. Published continuous service range is -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 fluid power, hydraulic and pneumatic systems, and general industrial maintenance.

Reference part number H5X285 when ordering; the item is sold individually. Unit weight is approximately 0.0221 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.