Technical data

TM 9-1005-319-23&P 0038
0038-3
Source Code
Application/Explanation
AO- Assembled by
unit/AMC level
AF- Assembled by
DS/ASB level
AH- Assembled by
sustainment level
AL- Assembled by
SRA/TASMG
AD- Assembled by
depot
AG- Navy only
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 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 level, order the item from the higher
level of maintenance.
XA Do not requisition an "XA" coded item. Order the next higher
assembly. (Refer to NOTE below.)
XB If an item is not available from salvage, order it using the CAGEC
and part number.
XC Installation drawings, diagrams, instruction sheets, field service
drawings; identified by manufacturer's part number.
XD Item is not stocked. Order an XD-coded item through local purchase
or normal supply channels using the CAGEC and part number given,
if no NSN is available.
NOTE
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 by requirements of AR 750-1.
Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to use and repair
support items. The maintenance codes are entered in the third and fourth positions of the SMR code as
follows:
Third Position. The maintenance code entered in the third position tells you the lowest maintenance level
authorized to remove, replace, and use an item. The maintenance code entered in the third position will
indicate authorization to the following levels of maintenance:
Maintenance Code
Application/Explanation
O* - Unit level/AMC maintenance can remove, replace, and use the item.
F - Direct support/ASB maintenance can remove, replace, and use the item.
H - Sustainment maintenance can remove, replace, and use the item.
L - Specialized repair activity/TASMG can remove, replace, and use the item.
G - Afloat and ashore intermediate maintenance can remove, replace, and use
the item (Navy only).
K - Contractor facility can remove, replace, and use the item.
Z - Item is not authorized to be removed, replaced, or used at any maintenance
level.
D - Depot can remove, replace, and use the item.
*NOTE - Army may use C in the third position. However, for joint service publications, Army will use O.