Motor blade lock replacement

[Terabrain]

Hello all,
can somebody please tell me the name of the piece where you lock the propeller in place? its round with a spring in the middle...
I disassembled one of the arms after a crash, my boy took it to look at it and somehow lost it in less than 0.7 sec.
Is this part available somewhere or will I have to buy a whole arm to get my drone flying again?

Thanks

 

[ac0j]

This looks like a question for @Thunderdrones He should chime in shortly!

 

[Cymruflyer]

Maybe the prop mount locking ring????

 

[Terabrain]

Maybe the prop mount locking ring????

Thanks, is it something you can buy somewhere? All motors i've found being sold are offered without it.
As of now I've very tempted to try to 3d printing it.

 

[Cymruflyer]

Contact ThunderDrones he is on here, he would probably know where to source them, or maybe have some spares from crashed drones in his stocks.