Ordering by number: this is C058974, cross-referenced to 3310104473, the Chicago Pneumatic bearing lock nut. Bushings carry the running clearance in a tool. They are meant to wear first, which is exactly why they are a stocked service item.

Matching it to a machine? Send us the model and serial and we will confirm the fit, or work back from the parts diagram hub. Complete tools are on the CP tool catalog. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.

• Part number: C058974
• Also listed as: 3310104473
• Manufacturer: Chicago Pneumatic
• Crowder SKU: CP-C058974