6MM CS X 57MM ID BLACK BUNA 70D

Part number H6X57 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 57 mm (2.244 in), a cross section of 6 mm (0.236 in), and an outside diameter of 69 mm (2.72 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Expect good resistance to petroleum-based oils, propane and butane, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with polar solvents or strong acids.

Maintenance and OEM teams specify it across construction equipment, automotive, and agricultural equipment.

Order part number H6X57, sold individually. Unit weight is approximately 6.834 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.