O-Ring is the Atlas Copco service part carried under part number 3371817755. Seals like this one are consumables in a rock drill they are cheap, they age with heat and hours, and replacing the whole set during a teardown saves a second strip-down later.
It is called out in the parts diagram for 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 hub; complete tools are on the Atlas Copco lineup. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3371817755
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371817755
- Listed on breakdowns for: RDR 48R Rock Drill, RDR 48M Rock Drill, LHD 23M Hydraulic Rock Drill

