A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5990-00-422-2093
NSN 6620-01-559-1921
NSN 4140-00-683-9070
NSN 6650-01-327-3068
NSN 5905-01-010-3320
NSN 5998-01-158-7728
NSN 5930-01-429-5621
NSN 5905-00-826-7629
NSN 6645-01-277-9337
NSN 6130-01-437-6050
NSN 5935-00-009-3165
NSN 4140-00-977-2489