NEMA Standards Publication FB & threads on 1/2" compression connector

[tortuga]

Greetings does anyone on here happen to have access to NEMA Standards Publication FB or know what the standard threads on 1/2" compression connector are?
Not the standard 1/2" NPT thread but the thread on the gland nut of a coupling.
Thanks

 

[synchro]

I believe it is a 7/8-18-2A UNS thread based on the drawing for a compression offset connector on page 94 at:

https://www.google.com/url?sa=t&sou...BxAB&usg=AOvVaw0D2FdVPVDSIyxv9dTDsZUG#page=94

The drawing for a straight compression connector doesn't show the thread size but it's likely to be the same.

 

[tortuga]

I believe it is a 7/8-18-2A UNS thread based on the drawing for a compression offset connector on page 94 at:

https://www.google.com/url?sa=t&sou...BxAB&usg=AOvVaw0D2FdVPVDSIyxv9dTDsZUG#page=94

The drawing for a straight compression connector doesn't show the thread size but it's likely to be the same.

Thank you!