NASA Abbreviations and Acronyms

1. NOMINAL
   Pernominal Percent Defective
2. NSR1
   First Coell
3. NSR2
   Second Coelliptic Maneuver
4. NUCLEAR
   Shunuclear Shuttle
5. O&FS
   Operations and Flight Support
6. O-NAV
   Onboard Navigation
7. O/ET
   Orbiter/external Tank
8. O/L-RC
   Overload-reverse Current
9. O/V
   Overvoltage
10. O/V-U/V
    Over Voltage/under Voltage
11. P-TUBE
    Pneumatic Tube
12. P/PL
    Primary Payload
13. PAM-A
    Pam
14. PARAM
    Parameter
15. PAYCOM
    Payload Command
16. PAYDAT
    Payload Data
17. PCVB
    Pyro Continuity Verification Box
18. PROPLT
    Propellant
19. PRSS
    Problem Report Squawk Sheet
20. R&CC
    Recorder and Communication Control

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