3MM CS X 30MM ID BLACK BUNA 70D

H3X30 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 30 mm (1.181 in), a cross section of 3 mm (0.118 in), and an outside diameter of 36 mm (1.42 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. The compound resists hydraulic fluids, many alcohols, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or automotive brake fluid are present.

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

Order part number H3X30, sold individually. Unit weight is approximately 0.941 g. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.