8.4MM CS X 229.5MM ID BLACK BUNA 90D

APG stocks the H90M8.4X229.5, a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 229.5 mm (9.035 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 246.3 mm (9.7 in). An o-ring compresses into its gland to block fluid or gas migration across a joint. This item is further identified as Metric O-RING, JIS P230.

Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, low compression set under sustained load. The material holds up against greases and lubricants, propane and butane, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

You will find this material specified across general industrial maintenance, fluid power, and construction equipment.

Order part number H90M8.4X229.5, sold individually. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.