5.7MM CS X 154.3MM ID BLACK BUNA 70D

The H5.7X154.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 154.3 mm (6.075 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 165.7 mm (6.52 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Supplementary detail from the product record: Metric O-RING, JIS G155.

The material holds up against greases and lubricants, hydraulic fluids, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for low compression set under sustained load, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ketones call for a different compound.

You will find this material specified across agricultural equipment, construction equipment, and automotive.

This item is sold individually under part number H5.7X154.3. Unit weight is approximately 15.842 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.