Woodruff Key, Atlas Copco part number 9232221420, listed at Crowder Supply as AC-9232221420. It pins its assembly together. Vibration is what kills them, so they are cheap insurance during any teardown of the breaker.
You will find it on the diagram for the Cobra Combi Gas Breaker/Drilll- before 2010 and Cobra Combi Gas Drill/Breaker, and on 1 other machine. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
If you need the parts around it, the parts diagram hub has the full breakdown library, and the Atlas Copco tool range covers the machines themselves. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 9232221420
- Manufacturer: Atlas Copco
- Crowder SKU: AC-9232221420
- Listed on breakdowns for: Cobra Combi Gas Breaker/Drilll- before 2010, Cobra Combi Gas Drill/Breaker, Red Hawk Gas Breaker/Drill
