This is Atlas Copco part number 0663909600 O-Ring, stocked at Crowder Supply as AC-0663909600. It seals a pressure joint inside the chipping hammer, and because elastomer takes a set long before the metal around it wears, it is one of the first items to replace when a machine starts weeping air or oil.
The published breakdown lists it on the TEX319 320 321 419 421 Chipping Hammer. Pull up the diagram and confirm the reference number for your serial before ordering.
Use the parts diagram hub to work through the rest of the assembly, or the Atlas Copco lineup if you are pricing a replacement machine. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 0663909600
- Manufacturer: Atlas Copco
- Crowder SKU: AC-0663909600
- Listed on breakdowns for: TEX319 320 321 419 421 Chipping Hammer
