1.9MM CS X 8.9MM ID BLACK BUNA 70D

APG stocks the H1.9X8.9, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 8.9 mm (0.35 in), a cross section of 1.9 mm (0.075 in), and an outside diameter of 12.7 mm (0.5 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against propane and butane, hydraulic fluids, and water. Buna-N (Nitrile) offers low compression set under sustained load, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or strong acids will shorten service life.

Common environments for this compound include general industrial maintenance, hydraulic and pneumatic systems, and fluid power.

Stocked as H1.9X8.9 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.