A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6240-01-470-2594
NSN 6105-00-123-6867
NSN 5965-00-682-3567
NSN 5996-01-437-8824
NSN 7035-00-533-4464
NSN 4140-01-659-1846
NSN 5930-01-207-7989
NSN 5910-00-900-4641
NSN 5905-00-068-7492
NSN 6320-00-882-7061
NSN 5925-00-959-6075
NSN 5985-01-495-9662