I am not certain how it would affect being able to get into an NLO class elsewhere. What I do know is many utilities stance is we hired you in to be an SRO, if you can't, then you're out. Most cannot simply roll an SRO back into an NLO class simply because it is an interviewed, bid, and Union position and the timing rarely works out.
Also, true statement, do not get out of the Navy, then hire into an SRO class believing you'll get more time with your family.