5.7MM CS X 279.3MM ID BLACK BUNA 70D

H5.7X279.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 279.3 mm (10.996 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 290.7 mm (11.44 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. Additional detail on this item: Metric O-RING, JIS G280.

As a material, Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. It resists water, petroleum-based oils, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where polar solvents or strong acids are present.

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

Order part number H5.7X279.3, sold individually. Unit weight is approximately 27.61 g. Check the compound against your process media, pressure and temperature before committing to a design.