2.3MM CS X 9MM ID BLACK BUNA 70D

Ordered as H.9X2.3, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 9 mm (0.354 in), a cross section of 2.3 mm (0.091 in), and an outside diameter of 13.6 mm (0.54 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to petroleum-based oils, water, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for low compression set under sustained load and an economical choice for high-volume maintenance programs. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in strong acids or polar solvents.

You will find this material specified across construction equipment, fluid power, and hydraulic and pneumatic systems.

H.9X2.3 ships individually. Review your operating media and conditions against this specification before installation. 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.