TM 5-6675-320-24P Source Code Maintenance Code Recoverability Code XX XX X How you get an item. 3d position 4th position Who can install, Who can do replace or use complete the item. Repair (see note) on the item. Who determines disposition action on an unserviceable the item. *Complete Repair:  Maintenance capacity, capability, and authority to perform all corrective maintenance tasks of the “Repair” function in a use/user environment in order to restore serviceability to a failed item. (1) Source Code.  The source code tells you how to get an item needed for maintenance, repair, or overhaul of an end item/equipment.  Explanation of source codes follows: Explanation PA PB PC PD PE PF PG 1^st two positions KD KF KB MO--Made at org/AVUM category MF--Made at DS/AVUM category MH--Made at GS category ML--Made at Specialized Repair   Activity (SRA) MD--Made at AO--Assembled by org/AVUM category AF--Assembled by DS/AVIM category AH--Assembled by GS category AL--Assembled by SRA AD--Assembled by Depot Stocked  items,  use  the  applicable  NSN  to  request/requisition  items  with these source codes.  They are authorized to the category indicated by the code entered in the third position of the SMR code. **NOTE:  Items coded PC are subject to deterioration. Items with these codes are not to be requested/requisitioned individually. They  are  part  of  a  kit  which  is  authorized  to  the  maintenance  category indicated in the third position of the SMR code.  The complete kit must be requisitioned and applied. Explanation Items   with   these   codes   are   not   to   be   requested/requisitioned individually.      They   must   be   made   from   bulk   material   which   is identified by the part number in the description and usable on code (UOC)  column  and  listed  in  the  Bulk  Material  group  of  the  repair parts list.  If the Item is authorized to you by the third position code of  the  SMR  code,  but  the  source  code  indicates  it  is  made  at  a higher   category,   order   the   item   from   the   higher   category   of maintenance. Explanation Items   with   these   codes   are   not   to   be   requested/requisitioned individually.  The parts that make up the assembled item must be requisitioned   or   fabricated   and   assembled   at   the   category   of maintenance indicated by the source code.  If the third position of the SMR code authorizes you to replace the item, but the source code indicates the item is assembled at a higher category, order the item from the higher category of maintenance. 2