NASA Abbreviations and Acronyms

1. NR
   Not Applicable
2. NR
   Number
3. NR
   Nonconformance Report
4. NR T
   Near Real-Time
5. NRC
   National Research Council
6. NRC
   Nonrecurring Costs
7. NREN
   National Aeronautics and Space Administration
8. NRI
   Nonrecurring Investment
9. NRS
   Nonconformance Reporting System
10. NRT
    Near Real-Time
11. NRTS
    Not Repairable At This Station
12. NRTZ
    Non Return To Zero
13. NRZ
    Non Return To Zero
14. NRZ-L
    Non Return To Zero Level
15. NRZ-M
    Nonreturn To Zero Mark
16. NRZ-S
    Nonreturn To Zero Space
17. NRZL
    Non Return To Zero Level
18. NS
    Nickel Steel
19. NS
    Network Services
20. NS
    Netscape Navigator

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