Guitar pot HELP!

Hey guys I know this is a very noobish Question but bare with me this is my first guitar.

Im testing to see if the pot fits and what I realized is the pot came with two nuts , a washer and some black metal Spiky type washer. My question is Which one of those items goes on the bottom side of the pot and which one goes on the top. Do I go Washer , nut , Black metal thing , guitar wood , Nut? Help im very confused and also Whenever I try to see if it works out The guitar pot still spins.

The spiky washer is a lock washer. It goes on the inside to help keep the pot from spinning.

(1) Nut is for height adjustment
(1) flat washer sits on top of that
(1) lock washer sits on top of that
Then you have the pickguard
(1) washer sits on top of the pickguard
(1) nut sits on top of that last washer and tightens the whole deal.