Lock Washer carries American Pneumatic Tool part number 1280582914, which replaced the older number 01148 and is stocked here under APT1148. It sits under the fastener to preserve the mating face and hold tension in a joint that vibrates constantly.
It shows up in the parts breakdown for the 131 Backfill Tamper. The complete machine is the APT 131 Pneumatic Backfill Tamper. Pull up the diagram and confirm the reference number for your serial before ordering.
Work through the rest of the assembly on the same breakdown, or start over from the full diagram library. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 1280582914
- Previous part number: 01148
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT1148
- Listed on breakdowns for: 131 Backfill Tamper

