NASA Abbreviations and Acronyms

1. LISP
   List Processing Language
2. LIU
   Line Interface Unit
3. LK
   Lock
4. LK
   Leak
5. LL
   Launch Left
6. LL
   Long Line
7. LL
   Launch and Landing
8. LL
   Lever Lock
9. LL
   Low Level
10. LL
    Long Lead
11. LL
    Lower Left
12. LL
    Lower Limit
13. LLC
    Logical Link Control
14. LLCF
    Launch and Landing Computational Facilities
15. LLCF
    Launch and Landing Computational Facility
16. LLCSC
    Low-Level Computer Software Component
17. LLD
    Low Level Discrete
18. LLI
    Limited-Life Item
19. LLIL
    Long Leadtime Items List
20. LLL
    Limited-Life List

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