1.78MM CS X 19.15MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 19.15 mm (0.754 in), a cross section of 1.78 mm (0.07 in), and an outside diameter of 22.71 mm (0.89 in), catalogued under part number H1.78X19.15. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to petroleum-based oils, propane and butane, and water. That behavior comes from the compound itself: Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Typical settings include agricultural equipment, general industrial maintenance, and hydraulic and pneumatic systems.

This item is sold individually under part number H1.78X19.15. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.