3MM CS X 39.2MM ID BLACK BUNA 70D

Part number H3X39.2 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 39.2 mm (1.543 in), a cross section of 3 mm (0.118 in), and an outside diameter of 45.2 mm (1.78 in). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Expect good resistance to many alcohols, petroleum-based oils, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Maintenance and OEM teams specify it across construction equipment, general industrial maintenance, and fluid power.

This item is sold individually under part number H3X39.2. As always, verify media compatibility and operating conditions against the requirements of your specific application.