5MM CS X 59MM ID BLACK BUNA 70D

The H5X59 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 59 mm (2.323 in), a cross section of 5 mm (0.197 in), and an outside diameter of 69 mm (2.72 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to many alcohols, propane and butane, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to strong acids or ozone and direct sunlight will shorten service life.

It sees regular use in hydraulic and pneumatic systems, fluid power, and agricultural equipment.

Stocked as H5X59 and sold individually. Unit weight is approximately 4.9 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.