A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5905-01-337-8487
NSN 6620-01-554-3987
NSN 4140-01-406-5344
NSN 5975-01-536-3778
NSN 5985-01-428-9394
NSN 5835-01-116-2369
NSN 5905-00-201-0513
NSN 5960-01-114-0197
NSN 5998-01-539-2708
NSN 5990-01-157-0441
NSN 5895-01-642-8152
NSN 5915-01-191-3274