Which insignia is used for a Navy O-2, Lieutenant Junior Grade?

The insignia for a Navy O-2, or Lieutenant Junior Grade, is represented by one silver bar. This rank is designated as the second officer rank in the U.S. Navy, following the O-1 rank of Ensign, which is symbolized by one gold bar. The use of one silver bar for a Lieutenant Junior Grade distinguishes this rank from lower ranks and provides clear visual identification of the officer's position and responsibilities within the Navy.

Understanding this insignia is important for recognizing the hierarchy and structure within naval operations. Knowing the differences in insignia helps personnel communicate effectively and understand command relationships. Other insignias, such as those for different ranks, reflect various experiences and responsibilities, but having one silver bar specifically identifies the Lieutenant Junior Grade rank.