Full form of OS3 is Officer's Steward 3rd Class (non Petty Officer)
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Others
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Frequently Asked Questions
What is the full form of OS3?
OS3 stands for Officer's Steward 3rd Class (non Petty Officer). Fullformexpand.com has 1 other full form of OS3 abbreviation.
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"OS3." Fullformexpand.com, https://www.fullformexpand.com/os3/officers-steward-3rd-class-non-petty-officer. Accessed 25 Apr. 2026.
Fullformexpand.com, 2026. "OS3." Accessed April 25, 2026. https://www.fullformexpand.com/os3/officers-steward-3rd-class-non-petty-officer.
"OS3." (n.d.). Fullformexpand.com. Retrieved April 25, 2026, from https://www.fullformexpand.com/os3/officers-steward-3rd-class-non-petty-officer.
OS3. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/os3/officers-steward-3rd-class-non-petty-officer (Accessed: 25 April 2026).
| Abbreviation | Full Form | Category |
|---|---|---|
| OS3 | Operations Specialist Petty Officer 3rd Class |
Others
|
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OS3 Full Form
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