Used on ticronderoga class cg (47), powhatan class t-atf 166, nimitz class cvn, kidd class cgn (41), virginia class cgn (41), spruance class dd (963), forrestal class cv, deep submergence systems programs (dssp), radio set (an/mrc-110), radio set, an/grc-160.. 2.921" overall length 0.438" overall width weapon system essential