3.5MM CS X 28.7MM ID BLACK BUNA 90D

Part number H90M3.5X28.7 is a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 28.7 mm (1.13 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 35.7 mm (1.41 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. Additional detail on this item: Metric O-RING, JIS P29.

Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. This material stands up to greases and lubricants, water, and petroleum-based oils. 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.

This item is sold individually under part number H90M3.5X28.7. Unit weight is approximately 1.349 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.