This is Atlas Copco part number 3377021819 washer, stocked at Crowder Supply as AC-3377021819. It spreads clamp load and protects the face under the fastener routine hardware, but the wrong one changes how the joint holds torque.
The published breakdown lists it on the LP 13-30P Hydraulic Power Pac. Compare it to the reference callout on the diagram to be sure it is the position you need.
The parts diagram hub indexes every breakdown we publish, and the Atlas Copco tool range has the tools these parts go into. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3377021819
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3377021819
- Listed on breakdowns for: LP 13-30P Hydraulic Power Pac

