This is American Pneumatic Tool part number 1280582577, previously 00138 lock washer, stocked at Crowder Supply as APT138. It spreads clamp load and protects the face under the fastener routine hardware, but the wrong one changes how the joint holds torque.
You will find it on the diagram for the 190A Airgo Paving Breaker and 160 Paving Breaker, and on 4 other machines. Pull up the diagram and confirm the reference number for your serial before ordering.
Everything else on that machine is one page away on the parts breakdown index; complete tools are on the American Pneumatic Tool range. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280582577
- Previous part number: 00138
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT138
- Listed on breakdowns for: 190A Airgo Paving Breaker, 160 Paving Breaker, 160A Airgo Paving Breaker, 180 Paving Breaker, 180A Airgo Paving Breaker, 190 Paving Breaker
