TM 5-4110-234-24P T.O.  40R7-5-7-4 Code Definition MF Item   to   be   manufactured   or   fabricated   at   the direct support maintenance level. MH Item   to   be   manufactured   or   fabricated   at   the general support maintenance level. MD Item   to   be   manufactured   or   fabricated   at   the depot maintenance level. AO Item to be assembled at organizational level. AF Item    to    be    assembled    at    the    direct    support maintenance level. AH Item     to     be     assembled     at     general     support maintenance level. AD Item to be assembled at depot maintenance level. XA Item   is   not   procured   or   stocked   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. XC Installation   drawing,   diagram,   instruction   sheet, field     service     drawing,     that     is     identified     by manufacturer's part number. 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     coded     above     except     those coded  XA  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 positions 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,   mobil   depot,   or   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 maintenance codes: Code Definition 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. L Repair   restricted   to   designated   specialized   repair activity. 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  or  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 Code Definition Z Nonreparable item.  When unserviceable, condemn and dispose at the level indicated in position 3. O Reparable  item.    When  uneconomically  reparable, condemn and dispose at organizational level. 2