This is Atlas Copco part number 0108133500 spring pin, stocked at Crowder Supply as AC-0108133500. Springs in a tool fatigue with cycle count rather than age, so a control that has gone lazy or fails to return is usually this part rather than the component it drives.

If you are working from a machine rather than a part number, start at the parts diagram library, or send us the model and serial and we will match it. Machines themselves are on the Atlas Copco catalog. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.

• Part number: 0108133500
• Manufacturer: Atlas Copco
• Crowder SKU: AC-0108133500