Key – Square is the American Pneumatic Tool service part carried under part number 1280583484, previously 02353. This is location hardware it keeps parts indexed to each other under impact loading, and it is normally replaced any time the joint is opened.
It appears on the 137 Rock Drill breakdown. That machine is the APT 137 Pneumatic Rock Drill if you are pricing a replacement rather than a repair. 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 parts diagram library. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280583484
- Previous part number: 02353
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT2353
- Listed on breakdowns for: 137 Rock Drill
