2.5MM CS X 20MM ID BLACK BUNA 90D

The H90M2.5X20 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 20 mm (0.787 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 25 mm (0.98 in). This o-ring compresses into its gland to block fluid or gas migration across a joint.

The compound resists propane and butane, petroleum-based oils, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with strong acids or polar solvents.

Maintenance and OEM teams specify it across general industrial maintenance, fluid power, and automotive.

This item is sold individually under part number H90M2.5X20. Unit weight is approximately 0.4923 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.