A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5965-01-122-5390
NSN 5998-00-104-4633
NSN 5920-01-020-7659
NSN 6110-01-657-8805
NSN 5930-00-620-7194
NSN 4140-00-296-9695
NSN 4140-01-634-0330
NSN 5950-01-068-5200
NSN 6130-01-657-7232
NSN 5895-01-566-3926
NSN 5999-01-032-2888
NSN 5935-01-020-8274