1MM CS X 19.5MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 19.5 mm (0.768 in), a cross section of 1 mm (0.039 in), and an outside diameter of 21.5 mm (0.85 in), catalogued under part number H1X19.5. It creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against water, petroleum-based oils, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or polar solvents.

You will find this material specified across automotive, general industrial maintenance, and construction equipment.

H1X19.5 ships individually. Unit weight is approximately 0.0664 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.