3MM CS X 134.5MM ID BLACK BUNA 90D

APG stocks the H90M3X134.5, a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 134.5 mm (5.295 in), a cross section of 3 mm (0.118 in), and an outside diameter of 140.5 mm (5.53 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists petroleum-based oils, water, and propane and butane. Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to automotive brake fluid or ketones will shorten service life.

You will find this material specified across hydraulic and pneumatic systems, construction equipment, and general industrial maintenance.

This item is sold individually under part number H90M3X134.5. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.