A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5925-01-476-2798
NSN 6620-00-084-3786
NSN 4140-00-395-0027
NSN 6620-01-392-7191
NSN 5960-01-364-9795
NSN 5965-00-236-0016
NSN 5950-01-516-6158
NSN 4140-00-740-2153
NSN 4140-00-195-1980
NSN 5996-01-454-1821
NSN 5855-00-089-3974
NSN 6645-00-613-2378