Ordering by number: this is R075839, cross-referenced to 3310104152, the Chicago Pneumatic rifle bar nut (Steel). Rotation components on a rock drill take a load impulse on every blow, so they are wear items with a predictable service life.
Crowder’s breakdowns list this part on the CP 0069 Rock Drill and CP 32A Model L Rock Dril, and on 2 other machines. Check it against the reference number on the diagram first; serial breaks change what fits.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the full diagram library. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: R075839
- Also listed as: 3310104152
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R075839
- Listed on breakdowns for: CP 0069 Rock Drill, CP 32A Model L Rock Dril, CP 32A B B-O Rock Drill, CP 0032 Rock Drill

