3MM CS X 114.5MM ID BLACK BUNA 90D

Ordered as H90M3X114.5, this is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 114.5 mm (4.508 in), a cross section of 3 mm (0.118 in), and an outside diameter of 120.5 mm (4.74 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against many alcohols, propane and butane, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) offers reliable performance in both static and dynamic service, low compression set under sustained load. 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 ozone and direct sunlight or strong acids.

Common environments for this compound include agricultural equipment, automotive, and general industrial maintenance.

This item is sold individually under part number H90M3X114.5. As always, verify media compatibility and operating conditions against the requirements of your specific application.