Ordering by number: this is 0147131803, the Atlas Copco screw. It is structural hardware for the pump, carrying clamp load through a joint that sees impact every cycle.
It appears on the DOP 15N 15N US 15F Diaphragm Pump breakdown. The complete machine is the Atlas Copco DOP 15 Pneumatic Diaphragm Pump. 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: 0147131803
- Manufacturer: Atlas Copco
- Crowder SKU: AC-0147131803
- Listed on breakdowns for: DOP 15N 15N US 15F Diaphragm Pump

