NASA Abbreviations and Acronyms

1. OSE
   Orbiter Support Equipment
2. OSE
   Operating Support Equipment
3. OSF
   Ordnance Storage Facility
4. OSHA
   Occupational Safety and Health Administration
5. OSHA
   Occupational Safety and Health Act (activity)
6. OSHA
   Occupational Safety And Health Act
7. OSIRIS-REX
   Origins-Spectral Interpretation-Resource Identification-Security-Regolith Explorer
8. OSL
   Ota Simulator Built By Las
9. OSLM
   Operations Shop/Lab Manager
10. OSM
    Orbital Service Module
11. OSO
    Office of Space Operations
12. OSO
    Orbiting Solar Observatory
13. OSO
    Operations Services Office
14. OSO
    Ocean Systems Operation
15. OSOP
    Orbiter Systems Operating Procedures
16. OSP
    Operations Support Plan
17. OSPL
    Overall Sound Pressure Level
18. OSPM
    Operating System
19. OSR
    Operations Support Room
20. OSRS
    Orbital Structural Reference System

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