This is the Atlas Copco washer part number 3000011901, Crowder SKU AC-3000011901. This distributes bolt load across the joint face on the rock drill. Flattened or dished washers are replaced during reassembly.
The published breakdown lists it on the RH 658L/LS/LS-01 Rock Drill and RH 656W Rock Drill. The tool itself is the RH 658 L Surface Rock Drill. Pull up the diagram and confirm the reference number for your serial before ordering.
Everything else on that machine is one page away, and the full diagram library indexes every breakdown we publish. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 3000011901
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3000011901
- Listed on breakdowns for: RH 658L/LS/LS-01 Rock Drill, RH 656W Rock Drill

