O-Ring is the Atlas Copco service part carried under part number 0663612800. It keeps air or oil where it belongs inside the tool. Once it flattens or hardens, the machine loses pressure across the joint and performance falls off gradually rather than all at once.
If you are working from a machine rather than a part number, start at the full diagram library, or send us the model and serial and we will match it. Machines themselves are on the Atlas Copco lineup. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 0663612800
- Manufacturer: Atlas Copco
- Crowder SKU: AC-0663612800