Ordered as H3X52.2, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 52.2 mm (2.055 in), a cross section of 3 mm (0.118 in), and an outside diameter of 58.2 mm (2.29 in). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, low compression set under sustained load. This material stands up to greases and lubricants, petroleum-based oils, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ozone and direct sunlight call for a different compound.
Maintenance and OEM teams specify it across construction equipment, general industrial maintenance, and hydraulic and pneumatic systems.
Stocked as H3X52.2 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Description 3MM CS X 52.2MM ID BLACK BUNA 70D
Actual Outside Diameter 58.2 mm (2.29 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 52.2 mm (2.055 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity