A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5985-00-863-0450
NSN 5975-01-492-4800
NSN 6240-01-633-9357
NSN 5905-01-425-5515
NSN 6145-01-014-6260
NSN 5910-01-552-5778
NSN 5999-01-485-8395
NSN 5905-00-554-4325
NSN 5998-01-487-5885
NSN 6135-01-658-7467
NSN 5996-00-839-8678
NSN 6220-00-955-5612