4MM CS X 55MM ID BLACK BUNA 70D

Ordered as H4X55, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 55 mm (2.165 in), a cross section of 4 mm (0.157 in), and an outside diameter of 63 mm (2.48 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The material holds up against 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 strong acids or ketones call for a different compound.

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

H4X55 ships individually. Unit weight is approximately 2.874 g. Check the compound against your process media, pressure and temperature before committing to a design.