AN364-820A Self Locking Nut

AN364-820A self locking nuts are required to keep your tailwheel fork attached to the tailwheel.  It is acceptable to reuse them until you are able to turn the nut with your fingers when the nylon locking material is engaging the threads.  When you can do that, it's time to get a new one.

AN364-820A specs:

• 1/2" - 20 thread size
• cadmium plated
• precision made
• approximately 1/2 the height of a regular AN365 nut
  

Note: The AN364 (thin) stop nut is for use in structural applications where the bolt is loaded primarily in shear or in any application where the tensile strength of the regular height AN365 is not required.