NASA Abbreviations and Acronyms

  1. FSK
    Frequency Shift Keyed (keying)
  2. FSL
    Flight Systems Laboratory
  3. FSLO
    First Spacelab Payload
  4. FSLP
    First Spacelab Payload
  5. FSLT
    First Sea-Level Test
  6. FSM
    Fuel Supply Module
  7. FSM
    First Servicing Mission
  8. FSMP
    Flight Software Management Plan
  9. FSN
    Federal Stock Number
  10. FSN
    Federal Stock Number (now NSN)
  11. FSO
    Facility Security Officer
  12. FSO
    Functional Supplementary Objective
  13. FSOH
    Flight Support Operations Handbook
  14. FSP
    Fault Summary Page
  15. FSPL
    Free-Space-Path Loss
  16. FSR
    Final System Release
  17. FSR
    Flight Specific Requirements
  18. FSRS
    Flight System Recording System
  19. FSS
    Fire Suppression
  20. FSS
    Flight Support Structure

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