A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 6610-01-291-4173
NSN 5960-00-448-0417
NSN 5895-00-647-4969
NSN 5915-01-386-7171
NSN 5965-01-024-7960
NSN 5910-01-442-8920
NSN 5960-00-913-8016
NSN 5910-01-487-4365
NSN 6650-01-187-9781
NSN 5835-01-426-6573
NSN 5998-01-183-2958
NSN 6135-00-500-2082