My list of Teletype hardware (including both 6-32 and 6-40) is here. Additions and corrections welcome. 
https://www.navy-radio.com/tty/tty-hw-list.htm
Cheers
Nick


On Thu, Dec 29, 2022 at 9:47 PM W2HX <w2hx@w2hx.com> wrote:
>
Looks like 6-32 to me, no problem. Wait? No, it is 6-40 thread! Whhhhyy!?
>
>
--
Nick England K4NYW
www.navy-radio.com