A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5975-00-594-8857
NSN 5905-01-196-9593
NSN 6220-01-448-1182
NSN 6150-01-608-4973
NSN 7035-01-162-7452
NSN 5990-01-259-7138
NSN 6130-00-643-4894
NSN 6620-01-348-1893
NSN 5855-00-494-9581
NSN 5985-00-615-3963
NSN 5996-01-237-1615
NSN 6685-01-449-1451