5.7MM CS X 70.6MM ID BLACK BUNA 90D

This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A built to an inside diameter of 70.6 mm (2.78 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 82 mm (3.23 in), catalogued under part number H90M5.7X70.6. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. The catalog record notes: Metric O-RING, JIS P71.

As a material, Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The material holds up against water, greases and lubricants, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

It sees regular use in fluid power, general industrial maintenance, and automotive.

This item is sold individually under part number H90M5.7X70.6. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.