Originally Posted by
EXDAC
My Scott mask has an MC-3A connector and it appears to be the same as the OP photo.
On closer inspection the main inlet fitting appears to be different. Perhaps the basic MC-3A designation excludes all the various fittings than can be attached to it. Mine seems to be like this -
https://www.aerox.com/mc-3a-regulato...-fpi-p-n-1450/
Shown in more detail here -
https://militaryantiquestoronto.com/...nnector-mc-3a/