my heart dropped to my knees.....

:-({|=ok i was on the way home when I heard a loud pop!!!!!
and the car pitched hard to the left on to freeway traffic....
pulled over and front wheel looks like it leaning really hard(to much camber)....the bearing exploded:banghead: i just put new wheel bearing in a few day ealier....after i got the car towed home take the drum off all the spindle lock nut groves were rolled back and the outer bearing was destroyed....the cotter pin was still in but it looked like the nut went over it....so my QUESTION IS :
1.How much do i need to torque the nut down .?
2.does anybody have a part number for the inner and outter bearing for a 9inch front brake drum.?

and where can i find a new spindle nut lock (what ever you call it)....?
Ive been having problems with this side since Big-O- tire snapped my studs....ive had to replace the studs twice now