This is the Atlas Copco O-Ring part number 9245998135, Crowder SKU AC-9245998135. Its job is to hold the pressure boundary between two mating faces; a hardened or nicked seal shows up as lost power and a damp housing well before anything else fails.
You will find it on the diagram for the TEX 640 Backfill Tamper and CP 0035 Backfill Tamper.
If you need the parts around it, the parts breakdown index has the full breakdown library, and the Atlas Copco lineup covers the machines themselves. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 9245998135
- Manufacturer: Atlas Copco
- Crowder SKU: AC-9245998135
- Listed on breakdowns for: TEX 640 Backfill Tamper, CP 0035 Backfill Tamper

