NASA Abbreviations and Acronyms

1. HT
   Heat Treat
2. HT
   High Temperature
3. HTC
   Hybrid Technol Ogy Computer
4. HTE
   hazardous top-level event
5. HTEXCH
   Heat Exchanger
6. HTLL
   High-Test-Level Language
7. HTM
   High Temperature
8. HTM
   High-Throughput Mission
9. HTO
   Horizontal Takeoff
10. HTP
    Hydroxyl Terminated Propellant
11. HTPB
    Hydroxyl Terminated Polybutadiene
12. HTPB
    Hydroxyl Terminated Polw-Butadiene
13. HTPB
    Hydroxyl Terminated Polybutadiene (propellant)
14. HTR
    Hydroxyl Terminated Polybutyiene
15. HTS
    Heat Transport Section
16. HTS
    Heat Transfer System
17. HUD
    Head-Up Display
18. HUDE
    Head Up Display Electronics
19. HUL
    Hardware Utilization List
20. HULL
    Hardware Utilization and Location List

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