| Acronym | Meaning |
 | 3M | Maintenance And Material Management (MMM) |
 | A/A | Air-to-air |
 | A/C | Air Conditioner |
 | A/C | Aircraft |
 | A/D | Analog/digital |
 | A/S | Airspeed |
 | AAA | Anti-aircraft Artillery |
 | AAA | Artifacts, Agents And Activities |
 | AAAA | Army Aviation Association Of America |
 | AAB | Aviation Armament Bulletin (tdc 57) |
 | AAC | Aircraft Armament Change (tdc 56) |
 | AAI | Aircraft Armament Inc (aai Corp Baltimore) |
 | AALC | Amphibious Assault Landing Craft |
 | AALCT | Amphibious Assault Landing Craft |
 | AAR | Air-to Air Receive |
 | AATR | Air-to-air Transmit/receive Mode |
 | AAW | Anti-air Warfare |
 | AAWBOT | Aviation Antisubmarine Warfare Basic Operator Trainer |
 | ABC | Analog Backup Computer |
 | ABEC | Analog Backup Engine Control |
 | ABECL | Left Engine Abec |
 | ABECR | Right Engine Abec |
 | ABF | Advanced Beam Former (searchlight) |
 | ABIT | Automatic Built-in Test |
 | ABIU | Avionics Bay Interface Unit |
 | ABL | Allocated Baseline |
 | ABU | Analog Backup |
 | AC | Alternating Current |
 | AC | Armament Computer |
 | ACADA | Advanced Chemical Agent Detector And Alarm |
 | ACALS | Army Computer-aided Acquistion & Logistics Support |
 | ACAS | Application Control Architecture Services |
 | ACB | Aircrew Bulletin (tdc 67) |
 | ACC | Accept |
 | ACC | Aircrew Change (tdc 66) |
 | ACC | American Communications Corp |
 | ACCB | Aircraft Change Control Board |
 | ACCE | Aircraft Change Control Board |
 | ACCS | Advanced Communications Control System |
 | ACE | Acquisition Career Enhancement |
 | ACE | Aircraft Common Equipment |
 | ACFT | Aircraft |
 | ACI | Allocated Configuration Identification |
 | ACK | Acknowledge |
 | ACLS | Auto Carrier Landing System (an/spn-xx) |
 | ACMS | Air Combat Maneuvering System |
 | ACMS | Air Combat Maneuvering Simulator |
 | ACMT | Automated Configuration Management Tool |
 | ACN | Advance Change Notice |
 | ACO | Administrative Contracting Officer |