A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 2925-01-562-1663
NSN 5999-01-536-1121
NSN 5960-01-078-3418
NSN 5996-01-477-6709
NSN 5855-00-797-8217
NSN 5950-00-790-0164
NSN 5998-01-231-9464
NSN 7035-01-435-7962
NSN 5905-01-569-1312
NSN 6685-00-835-2744
NSN 5935-01-616-1942
NSN 6135-01-222-0703