Switchcraft Microphone Jack 3 Circuit- SWCS12B- JJ-033.
Contact springs are of special alloys for long life. Insulation is high dielectric strength phenolic. Tinned terminal lugs for easy soldering. Short frame. Mounts by 3/8-32 threaded bushing and nut. Open circuit until plug inserted.
Appear to be high quality, have not had a chance to actually use them yet, but they are installed. Im sure they will work great.
This is NOT the small jack for the microphone. The headphone jack fits into it, which means it is .250 diameter. Your spec sheet isnt available, which would confirm what the size is. The small jack is supposed to be .206 diameter. I ordered 2 each of Part# 11-04936 and Part# 11-05995, but my David Clark 1/4 diameter headphone jack fits in all four of them.
Yes, this is the size needed for the small microphone plug that is part of the dual GA twin plugs most David Clark headsets are outfitted with.
Yes, this is the correct mic input jack for dual GA plugs.
Yes, these will be the correct stereo headphone and microphone jacks for your needs.