3.5MM CS X 123MM ID BLACK BUNA 70D

APG stocks the H3.5X123, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 123 mm (4.843 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 130 mm (5.12 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Expect good resistance to water, propane and butane, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving automotive brake fluid or ketones call for a different compound.

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

H3.5X123 ships individually. Unit weight is approximately 4.899 g. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.