1929 DL generator drive question

[Buster]

I have the one peice 1929-30 DL generator drive and need help in nut size at end of shaft. Johnny Sells book says 0117 which is 5/16 x 24. It does not fit. The shaft has 24 tpi threads but I believe a different pitch. Can anyone tell me what correct size or Harley number. Thanks.

[Buster]

I have looked in the 1930-41 Spare Parts book and found no listing for the nut.

[Rubone]

I have looked in the 1930-41 Spare Parts book and found no listing for the nut.

That book is too far away from the DL. Harley dropped lots of listings as you get further away. I'll look in the '29 and '30 books.

Update, the '29, '30 and '31 books all show the armature shaft nut as 0129 but no specs are given on it. Interestingly every year shows a different bevel gear.
It appears to be a 3/8-24 nut.