The mark consists of a feather and sword making an "X" in the center of two concentric circles. The outer circle includes the words U.S. NAVAL INSTITUTE in a stylized font arching throughout the circle with 1873 with one star on both sides at the bottom. There is a rope surrounding the outside of the circle tied at the bottom of the circle.
US NAVAL INSTITUTE ONE EIGHT SEVEN THREE; US NAVAL INSTITUTE EIGHTEEN SEVENTY THREE; US NAVAL INSTITUTE ONE THOUSAND EIGHT HUNDRED SEVENTY THREE
Color is not claimed as a feature of the mark.