On 4/2/2023 7:46 PM, Hubert Miller wrote:
Not that i come across such flex cable on my own very often, but i think i should learn the characteristics 
of the various sizes:

Of that list, with the exception of the RCA commercial, there are only two different kinds of cables, Hue.  My article at https://aafradio.org/garajmahal/flex_drive_cables.html covers details of the two types. 
These sets use the larger sheath cable, which has a thread of 5/8"-27:  SCR-183/283   RU-GF   Bendix MN-series  SCR-269-series   ARN-6 (and a host of other sets - mostly Bendix in origin.)

These sets use the smaller sheath diameter cable, which has a thread of 1/2"-27:  AN/ARC-5  SCR-274  ARA-ATA (and a lot of postwar radios, which I don't track.)

Now, the cable on ebay says the threads "look to have 5/8”-24 Thread" but I don't know how accurate his assertion is.  Looking doesn't trump using a good thread gauge and confirming the TPI.  The cables I have run into with that thread will not fit the military threaded receiver fittings without using pliers.

73,
Mike  KC4TOS