2.4MM CS X 21.8MM ID BLACK BUNA 90D

H90M2.4X21.8 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 21.8 mm (0.858 in), a cross section of 2.4 mm (0.094 in), and an outside diameter of 26.6 mm (1.05 in). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope. Additional detail on this item: Metric O-RING, JIS P22.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, most widely specified general-purpose sealing elastomer. This material stands up to greases and lubricants, water, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where polar solvents or strong acids are present.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, general industrial maintenance, and fluid power.

H90M2.4X21.8 ships individually. Unit weight is approximately 0.4801 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.