OS3: Operations Specialist Petty Officer 3rd Class
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Others
Language: English
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What is the full form of OS3?
OS3 stands for Operations Specialist Petty Officer 3rd Class. Fullformexpand.com has 1 other full form for abbreviation OS3.
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"OS3." Fullformexpand.com, https://www.fullformexpand.com/os3/909353. Accessed 22 Nov. 2025.
Fullformexpand.com, 2025. "OS3." Accessed November 22, 2025. https://www.fullformexpand.com/os3/909353.
"OS3." (n.d.). Fullformexpand.com. Retrieved November 22, 2025, from https://www.fullformexpand.com/os3/909353.
OS3. (2025). Fullformexpand.com. Available at: https://www.fullformexpand.com/os3/909353 (Accessed: 22 November 2025).
Found 1 other full form for OS3 →
| Term | Full Form | Category |
|---|---|---|
| OS3 | Officer's Steward 3rd Class (non Petty Officer)
| Others |
View All Abbreviations →
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