3MM CS X 243MM ID BLACK BUNA 70D

The H3X243 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 243 mm (9.567 in), a cross section of 3 mm (0.118 in), and an outside diameter of 249 mm (9.8 in). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to hydraulic fluids, many alcohols, and petroleum-based oils. Buna-N (Nitrile) delivers strong abrasion and tear resistance, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or ozone and direct sunlight will shorten service life.

It sees regular use in agricultural equipment, construction equipment, and fluid power.

H3X243 ships individually. Unit weight is approximately 6.6716 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.