Spring Pin carries American Pneumatic Tool part number 1280583026 the number that superseded 18704 and is stocked here under APT18704. Springs in a scaler fatigue with cycle count rather than age, so a control that has gone lazy or fails to return is usually this part rather than the component it drives.
Crowder’s breakdowns list this part on the 307 & 317 Needle Scaler. The complete machine is the APT 307 Pneumatic Needle Scaler.
Everything else on that machine is one page away, and the parts diagram library indexes every breakdown we publish. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 1280583026
- Previous part number: 18704
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18704
- Listed on breakdowns for: 307 & 317 Needle Scaler

