SECTION I TM 9-2350-277-24P (b) The    maintenance    code    entered    in    the fourth   position   tells   whether   or   not   the   item   is   to   be repaired and identifies the lowest maintenance level with the   capability   to   do   complete   repair   (i.e.      perform   all authorized repair functions.) (NOTE:  Some limited repair may be done on the item at a lower level of maintenance, if  authorized  by  the  Maintenance  Allocation  Chart  (MAC) and  SMR  codes.)  This  position  will  contain  one  of  the following maintenance codes: Code Application/Explanation O Unit maintenance or aviation unit is the lowest level that can do complete repair of the item. F Direct support or aviation intermediate is the lowest level that can do complete repair of the item. H General support is the lowest level that can do complete repair of the item. L Specialized repair activity is the lowest level that can do complete repair of the item. D Depot is the lowest level that can do complete repair of the item. Z Nonreparable.  No repair is authorized. B No repair is authorized.  (No parts or special tools are authorized for the maintenance of a "B" coded item).  However, the item may be reconditioned by adjusting, lubrication, etc, at the user level. (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 the 3rd position of the SMR code. O Reparable item.  When uneconomically reparable, condemn and dispose of the item at unit maintenance or aviation unit level. F Reparable item.  When uneconomically reparable, condemn and dispose of the item at the direct support or aviation intermediate level. H Reparable item.  When uneconomically reparable, condemn and dispose of the item at the general support level. D Reparable item.  When beyond lower level repair capability, return to depot. Condemnation and disposal of item not authorized below depot level. L Reparable item.  Condemnation and disposal of item not authorized below specialized repair activity (SRA). A Item requires special handling or condemnation procedure because of specific reasons (e.g.  precious metal content, high dollar value, critical material, or hazardous material). Refer to appropriate manuals/ directives for specific instructions. c. CAGEC   (Column   (3)).      The   Commercial   and Government    Entity    (CAGE)    Code    (C)    is    a    5-digit alphanumeric    code    which    is    used    to    identify    the manufacturer,   distributor   or   Government   agency,   etc. that supplied 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. NOTE:  When you use a NSN to requisition an item, the item you receive may have a different part number from the part ordered. e. DESCRIPTION AND USABLE ON CODE (UOC) (Column    (5)).        This    column    includes    the    following information: (1) The Federal item name and, when required, a minimum description to identify the item. (2) Physical security classification. Not applicable. (3) Items that are included in kits and sets are listed below the name of the kit or set on Figure KIT. (4) Spare/repair parts that make up     an assembled    item    are    listed    immediately    following    the assembled item line entry. (5) Part     numbers     for     bulk     materials     are referenced in this column in the line entry for the item to be manufactured/fabricated. (6) When  the  item  is  not  used  with  all  serial numbers of the same model, the effective serial numbers are  shown  on  the  last  line(s)  of  the  description  (before UOC).  Not applicable. (7) The  usable  on  code,  when  applicable  (see paragraph 5, Special information). (8) In the Special Tools List section, the basis of  issue  (BOI)  appears  as  the  last  line(s)  in  the  entry  for each special tool, special TMDE and other special 3