TM 9-2815-225-34&P (b) The maintenance code entered in the 4th position tells you 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 is the lowest level that can do complete repair of the item. F -   Direct support 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  (designate  the  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, lubricating, 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 5th position of the SMR code as follows: Recoverability Code Application/Explanation Z -   Nonreparable item.  When unserviceable, condemn and dispose of the item at the level of maintenance shown in 3d position of SMR code. O -   Reparable  item.    When  uneconomically  reparable,  condemn  and  dispose  of the item at unit level. F -   Reparable  item.    When  uneconomically  reparable,  condemn  and  dispose  of the item at the direct support 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 not authorized below SRA. A -   Item   requires   special   handling   or   condemnation   procedures   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. National Stock Number (Column (3)).  This column indicates the National Stock Number (NSN) assigned to the item.  Use the NSN for requests/requisitions. d. CAGE Code (Column (4)).  The Commercial and Government Entity Code (CAGEC) is a 5-digit numeric code which is used to identify the manufacturer, distributor, or Government agency, etc., that supplies the item. e. Part Number (Column (5)).  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. B-3