Ordering by number: this is 1280582613, listed as 01638 before the renumbering, the American Pneumatic Tool washer. It sits under the fastener to preserve the mating face and hold tension in a joint that vibrates constantly.
It appears on the 138 Rock Drill and 155 Rock Drill breakdown. Compare it to the reference callout on the diagram to be sure it is the position you need.
The parts diagram library indexes every breakdown we publish, and the American Pneumatic catalog has the tools these parts go into. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 1280582613
- Previous part number: 01638
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT1638
- Listed on breakdowns for: 138 Rock Drill, 155 Rock Drill
