Governmental & Military Abbreviations and Acronyms
- OSCOffice of Space Communications
- OSCOPERATIONS SPECIALIST CHIEF PETTY OFFICER
- OSCOperation Support Command
- OSCAOpen Space Conservation Area
- OSCAROrbiting Satellite Carrying Amateur Radio
- OSCAROpen Standard Codes and Routines
- OSCCROn-Scene Command and Coordination Radio
- OSCEOffice of Child Support Enforcement
- OSCEOrganisation for Security and Cooperation in Europe
- OSCEOrganization for Security and Cooperation in Europe
- OSCEOrganization to Secure Clinton's Election
- OSCMOPERATIONS SPECIALIST MASTER CHIEF PETTY OFFICER
- OSCRSOrbital Spacecraft Consumables Resupply System
- OSCSOPERATIONS SPECIALIST SENIOR CHIEF PETTY OFFICER
- OSDObject-Based Storage Device
- OSDOffice of The Secretary of Defense
- OSDOld School Democrat
- OSDOpen Shelter Deck
- OSDU.S. Office of The Secretary of Defense
- OSDOperational Suitability Demonstration
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