I measured several NOS Tuchel inserts, both, threads on male connectors and female nuts (!), and found a clear match only for the pitch: 1.0MM
But metric tables are a bit less definitive about any M-designation (metric), see table, and I found nothing for inch/Whitworth correlates.
Here is what I measured:
OD of the male connector: one of them is 21.60mm black, NOS original), another (newer, NOS Amphenol-made) 21.74mm
ID of the original nut: 20.91or thereabout for both versions.
The metric thread table below identifies the closest match as "M22x1 6e"
Inch table have only 7/8" in the general vicinity but nothing close. I also perused a Whitworth table and nothing there either.
I will contact Martin Schneider of Neumann to find out what they may have.
