| Abbreviation | Definition |
|---|---|
| ASSIST | Automated Systems Security Incident Support Team |
| ASSSC | Automated Self Service Supply Center |
| ASST | Advanced Submunition Sensor Technology |
| ASST | Anti Ship Surveillance And Targeting |
| ASST | Anti-Ship Surveillance and Targeting |
| ASSY | Assembly |
| AST | Administrative Supply Technician |
| AST | Advanced Sensor Technology |
| AST | Advanced Shooting Technology |
| AST | Advanced Simulation Technology |
| AST | Advanced Submunition Technology |
| AST | Airborne Surveillance Testbed |
| AST | Assign Secondary Traffic channels |
| ASTA | Aerial Surveillance and Target Acquisition |
| ASTA | Aviation System Test Activity |
| ASTAAM | Advanced Seeker Technology for Air to Air Missiles |
| ASTAG | Army Science and Technology Advisory Group |
| ASTAMIDS | Airborne Stand-off Minefield Detection System |
| ASTC | AWIS/CCS Software Transition Committee |
| ASTEC | Advanced Satellite Technology and EHF (Extremely-High Frequency) Communications |