Military Sealift Command
Major Subordinate Command
Major Subordinate Commands
Medical Service Corps
Maritime Sector Commander
Mine Sweeper, Coastal
Major Subordinate Commander
Military Sealift Command's
Military Staff Committee
mission support confirmation
Coastal Minesweeper
Maintenance Significant Consumable
Major Support Command
Major Systems Command
maneuver support cell
Marine Safety Center
Maritime Security Cutter
Materiel Status Committee
Materiel Support Command
Medical Service Corps.
Milestone Schedule Chart
Military Support Command
Missile Surveillance Coordinator
Mission Success Criteria
Mission Support Center
Multimedia Support Center
Multi-Mode Source Controlled
Multiple Sidelobe Canceller