| Acronym | Meaning |
| HRD | High-rate Dosimeter |
| MAA | Mathematical Association Of America |
| LEC | Lockheed Electronics Company |
| SDD | Software DescriPtion Document |
| EH/M | Extension Hose/Moi!thpiece |
| RC | Resistance-Capacitance |
| LA | Lanthanum |
| HAC | Heading Alignment Cylinder |
| DLS | Dynamic Load Simulator |
| EES | Emei@gency Ejection Suits |