This is American Pneumatic Tool part number 1280583498, previously 03171 chisel retainer – square, stocked at Crowder Supply as APT3171. This part keeps the steel captive in the rivet buster under repeated impact, so it is inspected at every steel change and replaced on condition rather than on a schedule.
The published breakdown lists it on the 133-ST/1133-ST Rivet Buster and 1133 Rivet Buster, and on 7 other machines. Pull up the diagram and confirm the reference number for your serial before ordering.
If you need the parts around it, the parts diagram library has the full breakdown library, and the APT lineup covers the machines themselves. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 1280583498
- Previous part number: 03171
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT3171
- Listed on breakdowns for: 133-ST/1133-ST Rivet Buster, 1133 Rivet Buster, 133 4-Bolt Rivet Buster, 633 Rivet Buster, 633 133 1133 CN Rivet Buster, 133CN T-Handle Rivet Buster, +3 more
