This is the Atlas Copco coupling nut part number 3371817149, Crowder SKU AC-3371817149. This is the supply connection for the rock drill. Damaged threads or a chewed sealing face cost pressure at the working end.
The published breakdown lists it on the RDR 48M Rock Drill and LHD 23M Hydraulic Rock Drill, and on 1 other machine. Pull up the diagram and confirm the reference number for your serial before ordering.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3371817149
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371817149
- Listed on breakdowns for: RDR 48M Rock Drill, LHD 23M Hydraulic Rock Drill, RDR 48R Rock Drill

