1MM CS X 1.8MM ID BLACK BUNA 70D

H1X1.8 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.8 mm (0.071 in), a cross section of 1 mm (0.039 in), and an outside diameter of 3.8 mm (0.15 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against many alcohols, propane and butane, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or automotive brake fluid will shorten service life.

Maintenance and OEM teams specify it across automotive, agricultural equipment, and hydraulic and pneumatic systems.

H1X1.8 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.