[Milsurplus] AN circular connectors

[Jim Haynes]

Yes, there's the Amphenol catalog, and probably Bendix and others as well.
Or they are in the Mouser & Digi-Key catalogs these days.  Now one problem
is that a bunch of the older ones have been discontinued.

If you can read the number on the mating connector then you can figure out
the other one.  e.g. if you have a panel-mount connector that is
AN-3102A-14-16P (I just made that up, may not be a real one) then the
mating cable end would be AN-3106A-14-16S  for a straight shell and
substitute 3108 for a right-angle shell.

Sometimes you see X, Y and Z suffixes, and those mean that the inner part
with the contacts has been rotated with respect to the key in the shell
so make it non-interconnectable with the ones with no suffix or a 
different suffix.  Sometimes if you have one you can disassemble it and
rotate the inner part to the X Y or Z position.

Somewhere I have an old chart of Amphenol connector arrangements, so
when and if I find it I will make a copy for you.

Sometimes you run into custom arrangements where, for example, some
of the pins are larger than they would be in the standard part.  That
is hard to deal with.

As always, the Wm. Perry Co. is a good source for these connectors,
used and new.

If you are trying to be historically authentic it will be hard because
the new manufacture connectors are not the same.  Olive-green stain
instead of bare aluminum; blue insulation instead of black, gold plating
on the pins instead of silver, etc.