Which of the following is the equivalent of Navy E-3?

The equivalent of Navy E-3 is Seaman. In the Navy ranking system, E-3 represents a pay grade that corresponds to the title of Seaman. This grade is part of the Sailor's progression from E-1 to E-9, with E-1 being the lowest rank and E-9 being the highest enlisted rank. Seaman is a designation specifically for personnel in the pay grade of E-3 within the Navy.

Understanding ranks within the Navy is crucial, as each rank comes with its own responsibilities and expectations. The Seaman rank (E-3) is typically achieved after a service member has completed the necessary training and time in service following their initial enlistment. The other ranks mentioned, like Petty Officer Second Class and Petty Officer First Class, belong to higher pay grades (E-5 and E-6, respectively), which involve more responsibility and leadership roles. Seaman Apprentice, on the other hand, is the designation for E-2, which is a step below E-3 and also represents a different level in the advancement structure.