What does OS1 Mean?

Browse 7 acronyms and abbreviations related to OS1.

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  • erations Specialist Petty Officer 1st Class
  • fficer's Steward 1st Class (non Petty Officer)
  • Operations Specialist Petty Officer First Class (US Navy)
  • Operating System 1
  • Optical Singlemode 1 (ISO/IEC; single mode fiber)
  • Officer's Steward 1st Class (non Petty Officer)
  • Operations Specialist Petty Officer 1st Class
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