It would be helpful to know the location of the rod end bearing. Most likely it will be one of these.
WASHER 5702-75-60 STEEL WASHER FOR AN3
The only place I know of that stocks this part is Vans Aircraft.
In some places where the rod end bearing travel is linear motion i.e. there isn't any rotation of the bearing as the push rod moves thru its travel (for example the elevator push tubes), an AN960-10 or 10L can be used. An AN970-3 is typically used where one side of the rod end bearing is clamped under a bolt head or nut.
NAS1149F0332P REPLACES AN960-10L
NAS1149F0363P REPLACES AN960-10
When in doubt use the 5702-75-60