A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5920-01-419-5271
NSN 5895-00-403-7353
NSN 6620-01-360-4725
NSN 6650-01-371-2356
NSN 5985-01-124-7299
NSN 5920-01-417-7306
NSN 6685-01-391-7560
NSN 6105-01-458-8428
NSN 5855-01-340-6541
NSN 6685-01-032-4752
NSN 5835-01-193-6192
NSN 6645-01-603-9331