 Fail-Safe Closed | Science |
| Family School Connection | Education |
| Family Service Center | Military |
| Family Support Center | Military |
| Farm Safety Council | Common |
| Fat-Storing Cells | Medical |
| Fayetteville State College | Common |
| Federal Safety Council | Science |
| Federal Shariat Court | Business |
| Federal Stock Class | Military |
| Federal Supply Catalog | Military |
| Ferric-Sorbitol-Citrate Complex | Medical |
| Ferris State College | Common |
| Fetal Spinal Cord | Medical |
| Fffederal Supply Classification | Military |
| Ffflight System Control | Military |
| Field Service Company | Military |
| Field Simulation Center | Military |
| Fighter Support Computer | Technology |
| File Server Control | Military |