TM9-2330-372-14&P
MO -(Made at org/
Items with these codes are not to be requested/requisitioned individually. They
AVUM Level)
must be made from bulk material which is identified by the part number in the
MF-(Made at DS/
DESCRIPTION AND USABLE ON CODE (UOC) column and listed in the Bulk
AVUM Level)
Material group of the repair parts list in this RPSTL. If the item is authorized to you
MH-(Made at GS
by the 3d position code of the SMR code, but the source code indicates it is made
Level)
at a higher level, order the item from the higher level of maintenance.
ML-(Made at Spe-
cialized Repair
Activity (SRA))
MD-(Made at
Depot)
AO-(Assembled by
Items with these codes are not to be requested/requisitioned individually. The
UMI AVUM
parts that make up the assembled item must be requisitioned or fabricated and
Level)
assembled at the level of maintenance indicted by the source code. If the 3d
AF-(Assembled by
position code of the SMR code authorizes you to replace the item, but the
DS/AVIM
source code indicates the item is assembled at a higher level, order the item
Level)
from the higher level of maintenance.
AH-(Assembled by
GS Category)
AL-(Assembled
by SRA)
AD-(Assembled by
Depot)
XA -
Do not requisition an "XA"-coded item. Order its next higher assembly. (Also refer to the
NOTE following.)
XB -
If an "XB" item is not available from salvage, order it using the CAGE and part number
given.
XC -
Installation drawing, diagram, Instruction sheet, field service drawing, that Is Identified
by the manufacturer's part number.
XD -
Item is not stocked. Order an "XD"-coded item through normal supply channels using
the CAGE 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 700-42.
(2) 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:
(a) 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
one of the following levels of maintenance.
Code
Application/Explanation
C-
Crew or operator maintenance done within
unit maintenance or aviation unit maintenance.
O-
Organizational or aviation unit category
can remove, replace, and use the item.
F-3