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 FOB designation is used to indicate when liability and ownership of goods is transferred from a seller to a buyer. When used with an identified physical location, the designation determines which party has responsibility for the payment of the freight charges and at what point title for the shipment passes from the seller to the buyer.