O-Ring Seal is the American Pneumatic Tool service part carried under part number 1280583199, which replaced the older number 18860. 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.
It appears on the M43 M44 4-Bolt Chipping Hammer breakdown. Pull up the diagram and confirm the reference number for your serial before ordering.
The parts diagram hub indexes every breakdown we publish, and the APT lineup has the tools these parts go into. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 1280583199
- Previous part number: 18860
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18860
- Listed on breakdowns for: M43 M44 4-Bolt Chipping Hammer
