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Crewman Affiliation UNSC Navy Higher Rank Petty Officer Third Class Lower Rank Crewman Apprentice Known Crewmans Abiad Singh Wang

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Crewman is the third enlisted rank of the UNSC Navy, equal in rank to Lance Corporal in the UNSC Marine Corps, Airman First Class in the UNSC Air Force, and Private First Class in the UNSC Army. It is the highest non-NCO enlisted rank in the Navy, directly below Petty Officer Third Class and directly above Crewman Apprentice.