| Acronym | Definitions |
|---|---|
| NSO | 12 |
| NSOC | 3 |
| NSOF | 2 |
| NSOM | 1 |
| NSP | 18 |
| NSPE | 1 |
| NSPS | 3 |
| NSR | 14 |
| NSRB | 2 |
| NSRDC | 1 |
| NSRDS | 1 |
| NSRL | 2 |
| NSRS | 1 |
| NSS | 19 |
| NSSC | 2 |
| NSSDC | 1 |
| NSSFC | 1 |
| NSSL | 2 |
| NSSMS | 1 |
| NSSN | 3 |
| NSSR | 3 |
| NSSS | 2 |
| NST | 7 |
| NSTA | 3 |
| NSTAC | 1 |
| NSTC | 5 |
| NSTF | 2 |
| NSTISSC | 2 |
| NSTISSI | 1 |
| NSTL | 7 |
(1411 — 1440 of 1623)