-020 BLACK BUNA 90D O-RING

H90020 is an AS568-020 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 0.864 in (21.95 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.004 in (25.5 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The material holds up against greases and lubricants, petroleum-based oils, and water. Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or polar solvents call for a different compound.

You will find this material specified across fluid power, hydraulic and pneumatic systems, and agricultural equipment.

This item is sold individually under part number H90020. Unit weight is approximately 0.2655 g and nominal inside diameter is listed as 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.