TM 9-2920-243-34 Code Definition XA Item   is   not   procured   or   stockea   because   the requirements   for   the   item   will   result   in   the replacement of the next higher assembly. XB Item  is  not  procured  or  stocked.  If  not  available through salvage, requisition. XD A   support   item   that   is   not   stocked.   When required,  item  will  be  procured  through  normal supply channels. NOTE Cannibalization or salvage may be used as a source of supply for any items source coded above except those coded XA, XD, and  aircraft  support  items  as  restricted  by AR 700-42. (2) Maintenance  code.  Maintenance  codes  are assigned to indicate the levels of maintenance authorized to USE and REPAIR support items. The  maintenance  codes  are  entered  in  the  third  and fourth position of the Uniform SMR Code format as  follows: (a) The maintenance code entered in the third position will indicate the lowest maintenance level  authorized  to  remove,  replace,  and  use  the support item. The maintenance code entered in the third position will indicate one of the following levels  of  maintenance: Code Application/Explanation c Crew  or  operator  maintenance  performed  within organizational maintenance. o Support  item  is  removed,  replaced,  used  at  the organizational level. F Support  item  is  removed,  replaced,  used  at  the direct support level. H Support  item  is  removed,  replaced,  used  at  the general support level. D Support items that are removed, replaced, used at depot,  mobile  depot,  specialized  repair  activity only. (b) The maintenance code entered in the fourth  position  indicates  whether  the  item  is  to  be repaired  and  identifies  the  lowest  maintenance  level with the capability to perform complete repair (i.e., all   authorized   maintenance   functions).   This position will contain one of the following main- tenance  codes: Code Application/Explanation o The  lowest  maintenance  level  capable  of  complete repair  of  the  support  item  is  the  organizational level. F The  lowest  maintenance  level  capable  of  complete repair  of  the  support  item  is  the  direct  support level. H The  lowest  maintenance  level  capable  of  complete repair of the support item is the general support level. D The  lowest  maintenance  level  capable  of  complete repair  of  the  support  item  is  the  depot  level, performed  by  depot,  mobile  depot  or  specialized repair activity. L Repair  restricted  to  designated  specialized  repair activity. B-2 . Code Application/Explanation z Nonreparable. No repair is authorized. B No   repair   is   authorized.   The   item   may   be reconditioned  by  adjusting,  lubricating,  etc.,  at the   user   level.   No   parts   special   tools   are procured for the maintenance of this item. (3) Recoverability code,  Recoverability  codes are  assigned  to  support  items  to  indicate  the disposition action on unserviceable items. The recoverability code is entered in the fifth position of the Uniform SMR Code format as follows: Recoverability Codes z o F H D L A Definition Nonreparable  item.  When  unserviceable,  condemn and dispose at the level indicated in position 3. Reparable  item.  When  uneconomically  reparable, condemn and dispose at organizational level. Reparable  item.  When  uneconomically  reparable, condemn and dispose at the direct support level. Reparable  item.  When  uneconomically  reparable, condemn   and   dispose   at   the   general   support level. Reparable  item.  When  beyond  lower  level  repair capability,  return  to  depot.  Condemnation  and disposal not authorized below depot level. Reparable   item.   Repair,   condemnation,   and disposal  not  authorized  below  depot/specialized repair activity level. Item  requires  special  handling  or  condemnation procedures   because   of   specific   reasons   (i.e., precious   metal   content,   high   dollar   value, critical material or hazardous material). Refer to appropriate manuaIs/directives    for    specific instructions. c. National/NATO Stock Number. Indicates the National/NATO  stock  number  assigned  to  the item  and  will  be  used  for  requisitioning  purposes. d. Part Number.  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   a stock   numbered   item   is requisitioned,  the  repair  part  received  may have a different part number than the part being  replaced. e.  Federal   Supply   Code   for   Manufacturer (FSCM).  The  FSCM  is  a  5-digit  numeric  code listed in SB 708-42 which is used to identify the manufacturer,  distributor,  or  Government  agency, etc. f. Description.  Indicates  the  Federal  item  name and, if required, a minimum description to identify the item. Items that are included in kits and sets are listed below the name of the kit or set with quantity of each item in the kit or set indicated in