What is the sleeve device of an O-9 in the Navy?

The sleeve device of an O-9 in the Navy is accurately described as a two-inch gold bar with two half-inch gold stripes above it. This insignia symbolizes the rank of Vice Admiral, which is the equivalent of a two-star admiral but indicates a higher rank than an O-8, who wears a similar gold bar with just one stripe. The addition of the second half-inch stripe signifies the higher rank and distinction within the Navy's officer hierarchy.

In this context, each component of the uniform insignia is significant, indicating not just the officer's rank but also their experience and level of responsibility within naval operations. The correct insignia is essential for maintaining uniform standards and ensuring that hierarchical distinctions are visually clear in military settings.