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.
# Free on board (FOB). An acronym for free on board when used in a sales contract. The seller agrees to deliver merchandise, free of all transportation expense, to the place specified by the contract. After delivery is complete, the title to all the goods and the risk of damage become the buyer's.