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.
What's an FOBT? A faecal occult blood test (FOBT) is a simple test that looks for the early signs of bowel cancer. It can be done in the privacy of your own home and involves taking a minuscule sample from two separate bowel motions (faeces) using a test kit. Samples are then sent to a laboratory for testing.