3MM CS X 30MM ID BLACK BUNA 90D

Part number H90M3X30 is a black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 30 mm (1.181 in), a cross section of 3 mm (0.118 in), and an outside diameter of 36 mm (1.42 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) delivers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. The material holds up against petroleum-based oils, water, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or automotive brake fluid call for a different compound.

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

Reference part number H90M3X30 when ordering; the item is sold individually. Unit weight is approximately 0.975 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.