7MM CS X 212MM ID BLACK BUNA 70D

Ordered as H7X212, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 212 mm (8.346 in), a cross section of 7 mm (0.276 in), and an outside diameter of 226 mm (8.9 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. It resists hydraulic fluids, petroleum-based oils, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or strong acids.

Maintenance and OEM teams specify it across automotive, hydraulic and pneumatic systems, and general industrial maintenance.

Reference part number H7X212 when ordering; the item is sold individually. Unit weight is approximately 32.625 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.