NASA Abbreviations and Acronyms

1. HE
   High Energy Astrophysics
2. HE
   Heat Exchange (exchanger)
3. HEA
   High Energy Astrophysics
4. HEAO
   High Energy Astronomy Observatory
5. HEAP
   High Energy Aim Point
6. HEAP
   high-energy aimpoint
7. HECV
   Helium Check Valve
8. HED
   Headquarters
9. HEDI
   High Endoatmospheric Defense Interceptor
10. HEDS
    High Endo Designation Sensor
11. HEF
    High Efficiency
12. HEG
    Helium Gauge
13. HEG
    Helium Gage
14. HEG-V
    Helium Gauge Valve
15. HEGV
    Helium Gauge Valve
16. HEGV
    Helium Gage Valve
17. HEL
    High-Energy Laser (US)
18. HELCUSS
    High-Energy Laser Computerized Unmanned Space
19. HELF
    High-Energy Laser Fluence
20. HEM
    Hitchhike Experiment Module

Last updated: May 6, 2025 — Total entries: 14,020