3MM CS X 120MM ID BLACK BUNA 70D

Ordered as H3X120, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 120 mm (4.724 in), a cross section of 3 mm (0.118 in), and an outside diameter of 126 mm (4.96 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. It resists propane and butane, hydraulic fluids, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

You will find this material specified across general industrial maintenance, automotive, and fluid power.

Reference part number H3X120 when ordering; the item is sold individually. Unit weight is approximately 3.417 g. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.