Packing Bushing carries American Pneumatic Tool part number 1280583138, listed as 00721 before the renumbering and is stocked here under APT721. It keeps air or oil where it belongs inside the tamper. Once it flattens or hardens, the machine loses pressure across the joint and performance falls off gradually rather than all at once.
You will find it on the diagram for the 131 Backfill Tamper. The complete machine is the APT 131 Pneumatic Backfill Tamper. 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 diagram hub. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280583138
- Previous part number: 00721
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT721
- Listed on breakdowns for: 131 Backfill Tamper
