A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5990-00-900-4459
NSN 6685-00-148-9729
NSN 6650-00-056-1581
NSN 5835-00-513-9680
NSN 5935-01-022-9640
NSN 6645-01-373-8860
NSN 5975-01-194-8261
NSN 5935-01-241-2372
NSN 5965-00-175-8972
NSN 6685-01-607-6481
NSN 5999-00-473-1099
NSN 6135-00-593-6831