This is Chicago Pneumatic part number C035166 (also carried as 3310103960) lock washer, stocked at Crowder Supply as CP-C035166. It sits under the fastener to preserve the mating face and hold tension in a joint that vibrates constantly.
The published breakdown lists it on the CP 0020 Sump Pump and CP 0077 Sludge Pump.
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. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: C035166
- Also listed as: 3310103960
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-C035166
- Listed on breakdowns for: CP 0020 Sump Pump, CP 0077 Sludge Pump
