Used on all-weather anti-ship harpoon (agm-84) missle. communications terminal satellite an/gsc-39(v)1. phoenix air to air (aim-54) missle. model 28 teletype. sh-60f asw carrier based helicopter. hh-60j uscg search and rescue, hh-60h search and rescue helicopters. sturgeon class ssn (637), ticonderoga class cg (47). los angeles class ssn (688).. weapon system essential