Ordering by number: this is 3122037100, the Atlas Copco washer. It sits under the fastener to preserve the mating face and hold tension in a joint that vibrates constantly.
Crowder’s breakdowns list this part on the ALF 67/80 67/80D Pusher Leg and BMT 51 Pusher Leg, and on 1 other machine. The complete machine is the Atlas Copco Pusher Leg Attachment For BBC Series Rock Drills. Check it against the reference number on the diagram first; serial breaks change what fits.
Need the parts around it? They are on the same breakdown, and the parts diagram hub covers every machine we publish. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3122037100
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3122037100
- Listed on breakdowns for: ALF 67/80 67/80D Pusher Leg, BMT 51 Pusher Leg, ALF 71 71-1 Pusher Leg
