A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6320-00-539-9283
NSN 5960-00-929-1276
NSN 5990-01-378-7349
NSN 6650-01-429-9242
NSN 5910-01-182-8219
NSN 5930-00-957-0977
NSN 6145-00-553-8196
NSN 5965-00-106-3195
NSN 4140-01-415-2478
NSN 5855-01-657-7657
NSN 5990-00-105-7831
NSN 5895-01-032-4619