A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5960-00-289-6591
NSN 2925-00-159-9003
NSN 5985-00-337-6819
NSN 5965-01-441-3876
NSN 5905-00-955-3154
NSN 5855-01-374-7204
NSN 5835-00-051-9092
NSN 5925-01-029-3483
NSN 6105-01-391-7722
NSN 5855-01-364-1005
NSN 5920-00-504-0564
NSN 5935-01-062-2072