5.7MM CS X 74.2MM ID BLACK BUNA 70D

Part number H5.7X74.2 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 74.2 mm (2.921 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 85.6 mm (3.37 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, low compression set under sustained load. The material holds up against many alcohols, greases and lubricants, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or polar solvents.

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

Stocked as H5.7X74.2 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.