Compression Spring is the American Pneumatic Tool service part carried under part number 1280583782, which replaced the older number 02401. It loads its mating part against the seat. When free length drops, the symptom is inconsistent operation the tool works, but not crisply.
The published breakdown lists it on the 137 Rock Drill. 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.
Need the parts around it? They are on the same breakdown, and the full diagram library covers every machine we publish. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280583782
- Previous part number: 02401
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT2401
- Listed on breakdowns for: 137 Rock Drill
