A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6650-01-155-8182
NSN 7035-00-155-9513
NSN 6145-00-091-1079
NSN 5998-01-212-3123
NSN 5935-00-584-6441
NSN 6610-00-141-0393
NSN 4140-01-412-0794
NSN 5910-00-253-7936
NSN 5910-01-576-8402
NSN 5996-00-994-3986
NSN 5925-01-023-2996
NSN 5895-00-209-2554