Used on kidd class ddg; over the horizon back scanner (oth-b) program (an/fps-118); an/wsc-6 shf satcom radio; low altitude navigation & targeting infrared system (lantirn); nimiz class cvn; tarawa class lha; wasp class lhd; aircraft, airlifter c-17a; forrestal class cv; mine countermeasures support (mcs) class (lph-12). 2.400" overall length 1.600" overall width item must comply with requirements of defense supply center columbus production standard no. LO5019; weapon system essential