TM 1-2835-209-23P (3)  Recoverability Code.  Recoverability codes are assigned to items to indicate the disposition action on unserviceable items.  The recoverability code is entered in the fifth position of the SMR code as follows: Code Application/Explanation Z - Nonreparable item.  When unserviceable, condemn and dispose of the item at the level of maintenance shown in 3rd position of SMR code. O - Reparable item.  When uneconomically reparable, con- demn and dispose of the item at aviation unit level (AVUM). F - Reparable item.  When uneconomically reparable, con- demn and dispose of the item at aviation intermediate level (AVIM). D - Reparable item.  When beyond lower level repair capability, return to depot.  Condemnation and dispo- sal of item not authorized below depot level. L - Reparable item.  Condemnation and disposal not authorized below specialized repair activity (SRA). A - Item requires special handling or condemnation procedures because of specific reasons (e.g., pre- cious metal content, high dollar value, critical material or hazardous material).  Refer to appropri- ate manuals/directives for specific instructions. c.  CAGE (Column (3)).  The Commercial and Government Entity (CAGE) is a 5-digit numeric code which is used to identify the manufacturer, distributor or Government agency, etc, that supplies the item. d.  PART NUMBER (Column (4)).  Indicates the primary number used by the manufacturer (individual, company, firm, corporation or Government activity), which controls the design and characteristics of the item by means of its engineering drawings, specifications standards and inspection requirements to identify an item or range of items. 5