This is the Atlas Copco lock nut part number 0291112820, also listed as 4700586018, Crowder SKU AC-0291112820. It carries the clamp load on its stud or bolt. On an impact tool, thread and face condition matter a nut that has been run down over damaged threads will not hold torque.
Crowder’s breakdowns list this part on the PAC P9 Hydraulic Power Pac. 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: 0291112820
- Also listed as: 4700586018
- Manufacturer: Atlas Copco
- Crowder SKU: AC-0291112820
- Listed on breakdowns for: PAC P9 Hydraulic Power Pac
