This is the Chicago Pneumatic lock washer part number R000550, also listed as 3310103959, Crowder SKU CP-R000550. It spreads clamp load and protects the face under the fastener routine hardware, but the wrong one changes how the joint holds torque.
It shows up in the parts breakdown for the CP 1240 1240S 1240SVR Paving Breaker and CP0222 CHIT BS CHOT BS Pick Hammer, and on 1 other machine. Check it against the reference number on the diagram first; serial breaks change what fits.
Use the parts diagram library to work through the rest of the assembly, or the Chicago Pneumatic lineup 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: R000550
- Also listed as: 3310103959
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R000550
- Listed on breakdowns for: CP 1240 1240S 1240SVR Paving Breaker, CP0222 CHIT BS CHOT BS Pick Hammer, CP 32A B B-O Rock Drill
