This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 17.86 mm (0.703 in), a cross section of 2.62 mm (0.103 in), and an outside diameter of 23.1 mm (0.91 in), catalogued under part number H2.62X17.86. It remains the most cost-effective sealing element available for pressurized assemblies.
The material holds up against hydraulic fluids, water, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or ketones will shorten service life.
Common environments for this compound include automotive, agricultural equipment, and hydraulic and pneumatic systems.
Reference part number H2.62X17.86 when ordering; the item is sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description 2.62MM CS X 17.86MM ID BLACK BUNA 70D
Actual Outside Diameter 23.1 mm (0.91 inch)
Actual Cross Section 2.62 mm (0.103 inch)
Actual Inside Diameter 17.86 mm (0.703 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity