What is the rank associated with the O-4 pay grade?

The rank associated with the O-4 pay grade is Lieutenant Commander. In the Navy, the ranks are structured so that O-1 to O-10 represent different officer ranks, with O-4 specifically denoting the position of Lieutenant Commander. This rank typically comes after Lieutenant (O-3) and is responsible for various leadership roles, often acting as a department head or taking on significant management duties within a unit. Understanding this rank is essential as it reflects not only pay grade but also the level of responsibility and authority an officer holds in the Navy hierarchy.

Other ranks listed, such as Major and Colonel, pertain to the Army, Air Force, or Marine Corps, while Commander is actually a higher rank than Lieutenant Commander at the O-5 pay grade. Recognizing this structure helps to navigate the various ranks within the military effectively.