-043 BLACK BUNA 50D O-RING

APG stocks the H50043, an AS568-043 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 3.489 in (88.62 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.629 in (92.18 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists propane and butane, petroleum-based oils, and water. Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or automotive brake fluid.

It sees regular use in construction equipment, fluid power, and hydraulic and pneumatic systems.

This item is sold individually under part number H50043. Nominal inside diameter is listed as 3 1/2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.