Used on virginia class cgn (41), arleigh burke class ddg, spruance class dd (963), los angeles class ssn (688), ticonderoga class cg(947), forrestal class cv, oliver perry class ffg, sturgeon class ssn (637), wasp class lhd, austin ship class lpd-4 amphibious transport docks.. weapon system essential
Used on ftf-15 common age. nuclear hardness critical item; no drawing to determine if isc code 1 item should also be nuclear hardness. can't change criticality code to reflect nuclear hardness
