A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5910-01-231-2421
NSN 5960-01-212-8118
NSN 5998-01-004-9067
NSN 5835-00-061-5717
NSN 6130-01-208-7802
NSN 5920-00-700-2942
NSN 6150-01-568-3034
NSN 5925-00-081-3181
NSN 6650-01-494-9956
NSN 5945-01-247-8932
NSN 6135-01-501-2407
NSN 6240-01-023-7720