I have seen a couple different revisions of the drawing numbre (the specs), both were from several years ago. Both ones specified the moly film finish, no others were specified. This was when I was working for a company that did a lot of government contracts, so they always got a lot of ducumentation with solicitations for bid.
If you want to see them all, every revison, just file a FOIA request. All I can tell you is that I have never seen a spec that allowed the manufacturer to choose much of anything, it is always very well laid out and very specific.
Every varied version of CLP I have seen had a different revison to the mil-spec number, for example the 2 I have in fromt of me appear to be a slightly different formula, but one is MIL-63460 while the other is MIL-63460C.