5.7MM CS X 519.3MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 519.3 mm (20.445 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 530.7 mm (20.89 in), catalogued under part number H5.7X519.3. It compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. This material stands up to propane and butane, hydraulic fluids, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or ozone and direct sunlight are present.

It sees regular use in fluid power, hydraulic and pneumatic systems, and agricultural equipment.

Order part number H5.7X519.3, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.