This is American Pneumatic Tool part number 1280583024, previously 18702 valve cap, stocked at Crowder Supply as APT18702. Cycle timing runs through this component. Because it shuttles on every blow, it accumulates cycles faster than almost anything else in the scaler.
It appears on the 307 & 317 Needle Scaler breakdown. The complete machine is the APT 307 Pneumatic Needle Scaler. 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: 1280583024
- Previous part number: 18702
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18702
- Listed on breakdowns for: 307 & 317 Needle Scaler
