5.7MM CS X 159.3MM ID BLACK BUNA 70D

APG stocks the H5.7X159.3, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 159.3 mm (6.272 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 170.7 mm (6.72 in). An o-ring compresses into its gland to block fluid or gas migration across a joint. This item is further identified as Metric O-RING, JIS G160.

As a material, Buna-N (Nitrile) is known for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. This material stands up to petroleum-based oils, greases and lubricants, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or polar solvents will shorten service life.

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

Reference part number H5.7X159.3 when ordering; the item is sold individually. Unit weight is approximately 16.142 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.