| Abbreviation | Definition |
|---|---|
| NSCS | Navy Supply Corps School |
| NSD | Naval Supply Depot |
| NSDB | Navy Shock Data Base |
| NSDF | Navy Standard Distillate Fuel |
| NSDS | Naval Service Diving Section |
| NSEA2 | Native Seaman 2nd Class |
| NSEA2 | tive Seaman 2nd Class |
| NSEA3 | Native Seaman 3rd Class |
| NSEA3 | tive Seaman 3rd Class |
| NSEB | Naval STEM Executive Board |
| NSEOD | Navy School Explosive Ordnance Disposal |
| NSFA | Naval Support Force Antarctica |
| NSFO | Navy Security Force Officer |
| NSFO | Navy Special Fuel Oil |
| NSL | Naval Submarine League |
| NSLS | Navy Senior Leader Seminar |
| NSM | Naval Strike Missile |
| NSM | Naval Surface Missile |
| NSMA | Navy Systems Management Activity |
| NSPCC | Navy Ships Parts Control Center |