4MM CS X 122MM ID BLACK BUNA 90D

This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A with an inside diameter of 122 mm (4.803 in), a cross section of 4 mm (0.157 in), and an outside diameter of 130 mm (5.12 in), catalogued under part number H90M4X122. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

This material stands up to greases and lubricants, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ketones or automotive brake fluid.

It sees regular use in hydraulic and pneumatic systems, construction equipment, and general industrial maintenance.

This item is sold individually under part number H90M4X122. Unit weight is approximately 6.46 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.