Parts for Craftsman 445790850: Unit Parts

This lock nut secures appliance components and resists loosening from vibration. Replacing a stripped, rusted, or missing nut restores a firm, reliable connection to reduce noise and prevent parts from shifting or backing off.

• Secures brackets, shafts, pulleys, panels, or other hardware as designed by the manufacturer
• Helps prevent fasteners from loosening due to vibration and thermal cycling
• Common fix for rattling/vibration noises and components that work loose over time
• Replaces damaged, rounded, or missing original nut to restore proper fit

• Disconnect power and shut off gas/water supplies before servicing
• Remove the worn nut with the appropriate wrench or socket
• Start the new nut by hand to avoid cross-threading; tighten securely—do not overtighten
• Inspect the mating bolt/stud and any washers; replace if worn or damaged