A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5990-00-193-3028
NSN 5895-01-103-9830
NSN 6240-01-502-4939
NSN 5835-00-946-2656
NSN 6105-01-162-7751
NSN 5895-00-665-3991
NSN 5905-01-143-8369
NSN 5985-01-129-2024
NSN 5990-01-341-5735
NSN 5905-01-390-5684
NSN 5996-00-961-3250
NSN 5950-01-543-4195