Source Code. The source code tells you how you get an Item needed for maintenance, repair, or
overhaul of an end Item/equipment Explanations of source codes follow
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 3d position of the
**NOTE Items codes 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 3d position of the SMR
code. The complete kit must be requisitioned and applied.
(Made at org AVUM level)
(Made at DS/AVUM level)
(Made at GS level)
(Made at Specialized Repair
(Made at Depot)
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 in the RPSTL. If the item is authorized to you
by the 3d position code of the SMR code, but the source code indicates it is made
at a higher level, order the item from the higher level of maintenance.
(Assembled by org AVUM
(Assembled by DS/AVUM
(Assembled by GS level)
(Assembled by Specialized
Repair Activity (SRA))
(Assembled by Depot)
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 level of maintenance indicated at the source code. If the 3d
position code of the SMR code, authorizes you to replace the item, but the source
code indicates the items are assembled at a higher level, order the Item from the
higher level of maintenance.
Do not requisition an "XA"-coded item. Order its next higher assembly. (Also, refer to the NOTE below).
If an "XB" item is not available from salvage, order it using the FSCM and part number given.
Installation drawing, diagram, instruction sheet, field service drawing, that is identified at manufacturer's
Item is not stocked. Order an "XD"-coded item through normal supply channels using the FSCM and
part number given, rf no NSN Is available.
Cannibalization or controlled exchange, when authorized, may be used as a source of supply for items with the above
source codes, except for those source coded "XA" or those aircraft support items restricted at requirements of AR 700-