3.5MM CS X 100MM ID BLACK BUNA 70D

Ordered as H3.5X100, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 100 mm (3.937 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 107 mm (4.21 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Expect good resistance to hydraulic fluids, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) is known for low compression set under sustained load, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or polar solvents call for a different compound.

It sees regular use in general industrial maintenance, automotive, and construction equipment.

Order part number H3.5X100, sold individually. Unit weight is approximately 3.809 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.