This read-only object mirrors the `rn` property of a manufacturing/FRU identity record used to identify a hardware unit for support, procurement, and regulatory purposes inside Cisco UCS Manager's internal information model, exposed here as a text string for this manufacturing-data record. The rn is just this object's own naming segment -- the last component appended to its parent's dn to build the full path -- rather than the whole path itself. For the FRU record for a specific power-supply model, the rn might be a short token like ioexpander-1 or locator-led-1, which UCS Manager concatenates onto the parent blade's dn.