Confidence votes 18.5K. BMC is the rate/rank designation for a Chief Boatswain's Mate (read Boatswain's Mate, Chief). SW  is the sailor's Warfare Qualification Designator, in this case, Surface Warfare. Written correctly, it would read BMC(SW) .
FOB stands for Free On Board or so there is no line item payment by the buyer for the cost of getting the goods onto the transport. There are two possibilities: FOB origin, or FOB destination. FOB origin means the transfer occurs as soon as the goods are safely on board the transport.
The initials FOB stand for either free on board or freight on board.. Either way, it has the same definition. When using the term in business, buyers and sellers attach FOB to the beginning of a location to show the point at which freight changes hands from seller to buyer. For instance, a buyer who purchases freight FOB Columbus receives that freight from the seller in Columbus.