5.5MM CS X 72MM ID BLACK BUNA 70D

Part number H5.5X72 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 72 mm (2.835 in), a cross section of 5.5 mm (0.217 in), and an outside diameter of 83 mm (3.27 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The material holds up against water, greases and lubricants, and many alcohols. Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or ozone and direct sunlight are present.

Maintenance and OEM teams specify it across automotive, general industrial maintenance, and hydraulic and pneumatic systems.

Reference part number H5.5X72 when ordering; the item is sold individually. Unit weight is approximately 7.1224 g. 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.