3MM CS X 8.5MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 8.5 mm (0.335 in), a cross section of 3 mm (0.118 in), and an outside diameter of 14.5 mm (0.57 in), catalogued under part number H3X8.5. It remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is valued for low compression set under sustained load and an economical choice for high-volume maintenance programs. Expect good resistance to petroleum-based oils, hydraulic fluids, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or automotive brake fluid.

You will find this material specified across automotive, fluid power, and hydraulic and pneumatic systems.

Stocked as H3X8.5 and sold individually. Unit weight is approximately 0.3243 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.