I'm asking here on this forum since I have never kept in touch with a Nuke coordinator. I don't think I've ever seen him drop by the recruiting office.
Have you tried asking your recruiter for their number? I seem to recall speaking with mine when a question came up that my recruiter couldn't answer and it was no big deal.
I'm sure you could also try to find a phone number for your regions MEPS to try to get in contact with the Nuke recruiter as well. I'm not 100% sure, but I remember mine having an office down in MEPS where I spoke with her personally while getting my paperwork ready.
I know that I'm not being truly helpful, but don't be afraid to ask people for help/guidance when its your life that is being affected. If your recruiter (for whatever reason) is unwilling to help you, let him know that you are willing to find one who is. Getting you enlisted is something he has a vested interest in, so if you need to get his attention, don't be afraid to do so. There's someone who will help you out there.