1.9MM CS X 2.8MM ID BLACK BUNA 90D

The H90M1.9X2.8 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 2.8 mm (0.11 in), a cross section of 1.9 mm (0.075 in), and an outside diameter of 6.6 mm (0.26 in). This o-ring delivers dependable bidirectional sealing in a compact groove envelope. The catalog record notes: Metric O-RING, JIS P3.

It resists greases and lubricants, hydraulic fluids, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for strong abrasion and tear resistance, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or ozone and direct sunlight will shorten service life.

Typical settings include agricultural equipment, hydraulic and pneumatic systems, and fluid power.

Stocked as H90M1.9X2.8 and sold individually. Unit weight is approximately 0.0568 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.