8.4MM CS X 259.5MM ID BLACK BUNA 70D

Part number H8.4X259.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 259.5 mm (10.217 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 276.3 mm (10.88 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope. The catalog record notes: Metric O-RING, JIS P260.

Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. The compound resists petroleum-based oils, propane and butane, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in polar solvents or ketones.

It sees regular use in general industrial maintenance, fluid power, and hydraulic and pneumatic systems.

Order part number H8.4X259.5, sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.