This is the Chicago Pneumatic pin – 3/32″ part number R158138, which also shows up as 3310104477, Crowder SKU CP-R158138. It pins its assembly together. Vibration is what kills them, so they are cheap insurance during any teardown of the clay digger.
You will find it on the diagram for the FL0022VR FL0022SVR Clay Digger and FL 0025 VR SVR Pick Hammer, and on 3 other machines. 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 breakdown index has the full breakdown library, and the CP tool catalog covers the machines themselves. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: R158138
- Also listed as: 3310104477
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R158138
- Listed on breakdowns for: FL0022VR FL0022SVR Clay Digger, FL 0025 VR SVR Pick Hammer, CP 0016 Chipping Hammer, CP 4130 Chipping Hammer, CP 4131 Chipping Hammer

