Used on spruance class dd (963); forrestal class cv; los angeles class ssn (688); ground mobile force satellite comm term (an/tsc-93a); missile, air-to-air sparrow (aim-7); radar set, light weight 3d (an/tps-59); virginia class cgn (41); ticonderoga class cg (47); sturgeon class ssn (637). weapon system essential axial terminal each end