A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5945-01-591-1673
NSN 6320-01-177-3192
NSN 6145-01-431-6834
NSN 5960-00-698-3765
NSN 7035-01-122-1264
NSN 5915-00-932-7655
NSN 6135-00-900-2139
NSN 6620-01-292-5072
NSN 5910-01-596-6960
NSN 5999-00-763-5601
NSN 5935-01-442-3946
NSN 5996-01-024-9976