NASA Abbreviations and Acronyms

1. NOT
   Providenot Provided
2. NOT
   Requirenot Required
3. NOT
   Switchanot Switchable
4. NPD
   Nasa Policy Directive
5. NPD
   Nasa Policydirective
6. NPD
   NASA Procedural Directive
7. NPDS
   Nuclear Particle Detection Subsystem
8. NPIC
   Network Information System
9. NPL
   Normal Power Level (see Rpl)
10. NPOE
    Npo Energomash
11. NPP
    National Polar Orbiting Partnership
12. NPP
    NPOESS Preparatory Project
13. NPP
    Network Planning and Preparation
14. NPR
    Nasa Procedural Requirement
15. NPR
    National Performance Review (office)
16. NPRV
    Nitrogen Pressure Relief Valve
17. NPS
    Nasa Planningstudies
18. NPSP
    Net Positive Static Pressure
19. NPU
    Nitrogen Purge Unit
20. NPV
    Nitrogen Pressure Valve

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