3.1MM CS X 69.4MM ID BLACK BUNA 90D

Part number H90M3.1X69.4 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 69.4 mm (2.732 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 75.6 mm (2.98 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 G70.

Expect good resistance to greases and lubricants, water, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or automotive brake fluid.

It sees regular use in fluid power, agricultural equipment, and construction equipment.

Order part number H90M3.1X69.4, sold individually. Unit weight is approximately 2.3888 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.