6MM CS X 125MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 125 mm (4.921 in), a cross section of 6 mm (0.236 in), and an outside diameter of 137 mm (5.39 in), catalogued under part number H6X125. It creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists water, many alcohols, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) offers strong abrasion and tear resistance, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ketones or automotive brake fluid call for a different compound.

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

Order part number H6X125, sold individually. Unit weight is approximately 14.24 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.