This is Chicago Pneumatic part number M050502, cross-referenced to 3310104334 lock nut, stocked at Crowder Supply as CP-M050502. 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.
You will find it on the diagram for the CP 0077 Sludge Pump. Check it against the reference number on the diagram first; serial breaks change what fits.
Use the parts diagram hub to work through the rest of the assembly, or the Chicago Pneumatic tool range if you are pricing a replacement machine. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: M050502
- Also listed as: 3310104334
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-M050502
- Listed on breakdowns for: CP 0077 Sludge Pump
