Ordering by number: this is 3371817145, the Atlas Copco washer. It sits under the fastener to preserve the mating face and hold tension in a joint that vibrates constantly.
The published breakdown lists it on the RDR 48R Rock Drill and RDR 48M Rock Drill, and on 1 other machine.
Everything else on that machine is one page away on the parts diagram library; complete tools are on the Atlas Copco tool range. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 3371817145
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371817145
- Listed on breakdowns for: RDR 48R Rock Drill, RDR 48M Rock Drill, LHD 23M Hydraulic Rock Drill
