S/42 toggle - diff numbers

[kurusu]

Originally Posted by alanint

I think the point being made is why would a part within a matching set of parts also have the same number as a mismatched part within the assembly. (I.e. the additional number 84 on the breech block, the same as the mismatched firing pin).

The logical explanation is that the firing pin # 84 was fitted to the # 59 breech block and subsequntly marked with firing pin number to know that the firing pin is no longer a mismatch.

Not all firing pins are a drop in in the breech block and some fitting may be required to avoid future problems (learnt this the hard way).