This is American Pneumatic Tool part number 1280583458, previously 02108 nut – hex, stocked at Crowder Supply as APT2108. 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.
The published breakdown lists it on the 138 Rock Drill and 155 Rock Drill. 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.
Use the parts diagram hub to work through the rest of the assembly, or the American Pneumatic 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: 1280583458
- Previous part number: 02108
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT2108
- Listed on breakdowns for: 138 Rock Drill, 155 Rock Drill
