A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6135-01-633-8502
NSN 5950-01-316-0444
NSN 5895-00-170-4568
NSN 6650-01-587-2243
NSN 6650-00-419-4863
NSN 5965-01-217-5620
NSN 6650-01-005-0714
NSN 5965-00-035-4556
NSN 5835-01-159-9088
NSN 5998-00-170-6756
NSN 5975-00-119-9182
NSN 6645-00-057-3499