| Petty Officer | |
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| File:Petty Officer.jpg Petty Officer | |
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Petty Officer, 1st class |
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Petty Officer, 2nd class |
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Petty Officers are immediately inferior to Chief Petty Officers but superior to Crewman. Petty Officer, 2nd Class is equivalent to a Lance Corporal, and Petty Officer, 1st Class is equivalent to Corporal.