Will different sized bullet crimps fit together?
According to the spec sheets of the Morris Nylon Insulated Double Crimp Bullet Disconnects. There is a blue that will fit the reds, and a blue that will fit the yellows.



#Red (22-16 AWG)
T 0.016
L 0.886
B 0.433
C 0.067
D 0.157
F 0.335
W 0.157  

#Blue 1 (16-14 AWG)
T 0.016
L 0.886
B 0.433
C 0.091
D 0.197
F 0.335
W 0.157  

#Blue 2 (16-14 AWG)
T 0.016
L 0.886
B 0.433
C 0.091
D 0.197
F 0.335
W 0.197  

#Yellow (12-10 AWG)
T 0.016
L 0.925
B 0.512
C 0.134
D 0.256
F 0.335
W 0.197