A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6685-00-926-4337
NSN 6650-00-717-8913
NSN 5999-00-852-1118
NSN 5945-01-444-0971
NSN 6105-01-139-4066
NSN 4140-00-279-3148
NSN 5895-00-950-9096
NSN 5910-00-530-6094
NSN 6610-00-010-3085
NSN 5950-01-251-3795
NSN 6610-01-160-2526
NSN 5975-01-437-3066