| Acronym | Meaning |
| CADE | Controller/Attitude-Direct Electronics |
| CADS | Command And Data Simulator |
| CADSI | Communications And Data Systems Integration |
| CADU | Control And Display Unit |
| CAL | Calibrate |
| CAL | Calories |
| CAL | Cornell Aeronautical Laboratory |
| CALC | Calculate |
| CAM | Carrier Aircraft Modification |
| CAM | Computer Aided Manufacturing |
| CAM | Computer Annunciation Matrix |
| CAM | Content Addressable Memory |
| CAM | R Camera |
| CAN | Certification Analysis Network |
| CAP | Capacitor |
| CAP | CCMS Application Programs |
| CAP | Computer Application Program |
| CAP | Contractor Acquired Property |
| CAP | Cost Account Package |
| CAP | Crew Activity Plan |
| CAPCOM | Capsule Communicator |
| CAPRI | Captive Reset Ignitor |
| CAPS | Common Attitude Pointing System |
| CAPS | Crew Altitude Protection System |
| CAPSIM | Captive Simulation |
| CAR | Certification Approval Request |
| CAR | Configuration And Acceptance Review |
| CAR | Corrective Action Request |
| CARID | Customer Acceptance Review Item Disposition |
| CARR | Customer Acceptance Readiness Review |
| CAS | Calibrated Airspeed |
| CAS | Command Augmentation System |
| CAS | Control Augmentation System |
| CASO | Cancellation Addendum Sales Order |
| CASP | CDS APPlication SL'pport Programs |
| CASS | CITE Augmentation Support System |
| CATEG | Category |
| CAU | Command Acquisition Unit |
| CAU | Command Activation Unit |
| CAU | Customer Acquisition Unit |
| CAUT | Caution |
| CB | Center Of Buoyancy |
| CB | Circuit Breaker |
| CB | Constant Bandwidth |
| CB/AC | Circuit Breaker (ac Only) |
| CB/DC | Circuit Breaker (dc Only) |
| CBA | C-Band Transponder Antenna |
| CBC | Complete Blood Count |
| CBE | Connector Bracket |
| CBIL | Common And Bulk Items List |