-420 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-420 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 3.85 in (97.79 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.4 in (111.76 mm), catalogued under part number H70MD420. It remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to propane and butane, many alcohols, and greases and lubricants. Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ketones call for a different compound.

This item is metal detectable for HACCP and foreign-body control programs. You will find this material specified across fluid power, automotive, and construction equipment.

Order part number H70MD420, sold individually. Nominal inside diameter is listed as 3 7/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.