Washer, American Pneumatic Tool part number 5739, listed at Crowder Supply as APT5739. It spreads clamp load and protects the face under the fastener routine hardware, but the wrong one changes how the joint holds torque.
It is called out in the parts diagram for the 133 4-Bolt Rivet Buster. 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.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts breakdown index. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 5739
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT5739
- Listed on breakdowns for: 133 4-Bolt Rivet Buster
