Honestly I haven't used Militec 1 in almost a decade. When StraitR mentioned how FC forms a coating, Militec 1 was the first thing I thought of, because that is what it did. As a lube it was pretty horrible compared to the modern stuff, it migrated easily, and generally didn't last long on guns.
I am not surprised they lost their NSN, particularly if it was granted as a CLP, as there is no way that it meets the C of the CLP. And the other two are iffy.
Todd probably has more recently experience than I do, I remember him saying he used it in some of his torture test stuff. Not sure if he still does.