A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5985-01-133-8197
NSN 5990-00-689-5736
NSN 5960-01-359-4257
NSN 6650-01-141-5999
NSN 5996-01-190-9982
NSN 5835-01-557-4914
NSN 5895-01-024-4341
NSN 5975-01-177-6953
NSN 6135-00-548-2765
NSN 5835-01-426-6573
NSN 6650-01-370-5265
NSN 5915-00-044-5763