A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5935-00-088-2724
NSN 5999-01-044-6250
NSN 5855-01-407-5761
NSN 6145-00-067-7436
NSN 5950-00-911-4129
NSN 4140-01-055-1301
NSN 5915-01-025-1362
NSN 5855-01-089-2248
NSN 6645-00-613-2378
NSN 2925-01-359-4027
NSN 5990-01-188-7309
NSN 5985-01-578-9386