This is the Chicago Pneumatic nut part number P155536, which also shows up as 3310103936, Crowder SKU CP-P155536. It secures its joint against constant vibration, which is why it is treated as a replaceable item rather than a permanent one.
It appears on the CP 4129 Chipping Hammer breakdown. 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 CP tool catalog if you are pricing a replacement machine. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: P155536
- Also listed as: 3310103936
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-P155536
- Listed on breakdowns for: CP 4129 Chipping Hammer
