A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5996-00-753-1599
NSN 5960-01-458-0774
NSN 6110-01-340-9424
NSN 5998-01-023-9412
NSN 6130-01-190-3332
NSN 6240-01-575-0613
NSN 4140-01-123-0262
NSN 5998-01-552-9600
NSN 6220-01-209-6219
NSN 6610-00-283-2592
NSN 5950-00-420-3642
NSN 5999-01-149-7270