A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 2925-01-104-8163
NSN 6135-00-754-8191
NSN 5998-00-100-0162
NSN 7035-01-198-1512
NSN 5965-00-439-6287
NSN 5975-01-144-5115
NSN 5975-01-380-4079
NSN 6130-01-530-0060
NSN 5910-01-495-1056
NSN 6130-01-614-6717
NSN 5996-01-290-6926
NSN 6685-00-880-4912