5MM CS X 55MM ID BLACK BUNA 70D

The H5X55 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 55 mm (2.165 in), a cross section of 5 mm (0.197 in), and an outside diameter of 65 mm (2.56 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. The material holds up against petroleum-based oils, water, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving strong acids or automotive brake fluid call for a different compound.

You will find this material specified across agricultural equipment, general industrial maintenance, and automotive.

Stocked as H5X55 and sold individually. Unit weight is approximately 4.5575 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.