2MM CS X 123MM ID BLACK BUNA 70D

H2X123 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 123 mm (4.843 in), a cross section of 2 mm (0.079 in), and an outside diameter of 127 mm (5 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to propane and butane, greases and lubricants, and water. Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or automotive brake fluid.

Maintenance and OEM teams specify it across construction equipment, automotive, and hydraulic and pneumatic systems.

Reference part number H2X123 when ordering; the item is sold individually. Unit weight is approximately 1.56 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.