Used on qtarawa class lha, forrestal class cv, spruance class dd(963), nimitz class cvn, wasp class lhd, virginia class cgn (41), kidd class ddg; fire control system, missile mk 74 (fcs); radar set, lightweight 3d (an/tps-59). 0.840" overall length 0.719" overall width 32 thread quantity per inch weapon system essential uns thread series