4.5MM CS X 48MM ID BLACK BUNA 70D

Ordered as H4.5X48, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 48 mm (1.89 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 57 mm (2.24 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for low compression set under sustained load and economical choice for high-volume maintenance programs. This material stands up to petroleum-based oils, propane and butane, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving polar solvents or strong acids call for a different compound.

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

Stocked as H4.5X48 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.