NASA Abbreviations and Acronyms

1. USA
   User Service Access
2. USB
   Unified S-Band
3. USB
   User's Support Branch
4. USBE
   Unified S-band Equipment
5. USBI
   United Space Booster
6. USBS
   Unified S-band System (subsystem)
7. USDC
   United States Department of Commerce
8. USDOC
   United States Department of Commerce
9. USDOS
   United States Department of State
10. USDS
    United States Department of State
11. USEC
    Microsecond
12. UT
    Universal Time
13. UT
    University of Texas
14. UT
    Unit Tester
15. UT
    Umbilical Tower
16. UT1
    Universal Time
17. UTC
    Universal Time
18. UTC
    Universal Time Code
19. UTC
    Universal Test Console
20. UTC
    Coordinated Universal Time

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