This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 20 mm (0.787 in), a cross section of 1 mm (0.039 in), and an outside diameter of 22 mm (0.87 in), catalogued under part number H1X20. It remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) is specified here for low compression set under sustained load and economical choice for high-volume maintenance programs. Expect good resistance to hydraulic fluids, greases and lubricants, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
Common environments for this compound include fluid power, hydraulic and pneumatic systems, and automotive.
Order part number H1X20, sold individually. Unit weight is approximately 0.063 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Description 1MM CS X 20MM ID BLACK BUNA 70D
Actual Outside Diameter 22 mm (0.87 inch)
Actual Cross Section 1 mm (0.039 inch)
Actual Inside Diameter 20 mm (0.787 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity