APG stocks the H8X210, a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 210 mm (8.268 in), a cross section of 8 mm (0.315 in), and an outside diameter of 226 mm (8.9 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified for low compression set under sustained load, strong abrasion and tear resistance. This material stands up to greases and lubricants, petroleum-based oils, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
Typical settings include hydraulic and pneumatic systems, automotive, and fluid power.
Order part number H8X210, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Description 8MM CS X 210MM ID BLACK BUNA 70D
Actual Outside Diameter 226 mm (8.9 inch)
Actual Cross Section 8 mm (0.315 inch)
Actual Inside Diameter 210 mm (8.268 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity