Used on communications, lha; engine, aircraft, f-100-pw-200 (f-16a/b/c/d); spruance class dd (963); milstarsystem; aircraft, b-2 bomber (atb); forrestal class cv virginia class cgn (41) helicopter, carrier based asw, sh-60f; ticonderoga class cg (47) hayes class t-ag 195. 2a thread class right-hand 0.703" overall length weapon system essential unf thread series