-407 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-407 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 2.225 in (56.52 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.775 in (70.49 mm), catalogued under part number H70407. It creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists many alcohols, hydraulic fluids, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers strong abrasion and tear resistance, 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). Applications involving ozone and direct sunlight or polar solvents call for a different compound.

Typical settings include hydraulic and pneumatic systems, automotive, and agricultural equipment.

This item is sold individually under part number H70407. Unit weight is approximately 0.0094 g and nominal inside diameter is listed as 2 1/4 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.