TM-9-2520-238-34P
M113A1 FOV, M113A2 FOV, M548 AND M548A1
DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST); RIGHT ANGLE DRIVE, COOLING FAN; GEARCASE, TRANSFER; DRIVE ASSEMBLY, FINAL; DIFFERENTIAL, STEERING CONTROL; BRAKE, SINGLE DISK; CYLINDER ASSEMBLY, HYDRAULIC BRAKE
TM-9-2520-238-34P - Page 7 of 80
SECTION I
TM 9-2520-238-34P
3
Code
Application/Explanation
MO — Made at
Items with these codes are not to be requested/
UM/AVUM level
requisitioned individually. They must be made
from bulk material which is identified by the
MF — Made at
part number in the DESCRIPTION AND USABLE ON
DS/AVUM level
CODE (UOC) column and listed in the Bulk Material
group of the repair parts list in this RPSTL.
MH — Made at GS level
If the item is authorized to you by the 3rd
position code of the SMR code, but the source
ML — Made at Specialized
code indicates it is made at a higher level, order
Repair Activity (SRA)
the item from the higher level of maintenance.
MD — Made at Depot
AO — Assembled by
Items with these codes are not to be requested/
UM/AVUM Level
requisitioned individually. The parts that make
up the assembled item must be requisitioned or
AF — Assembled by
fabricated and assembled at the level of
DS/AVIM Level
maintenance indicated by the source code. If the
3rd position code of the SMR code authorizes you to
AH — Assembled by
replace the item, but the source code indicates
GS Category
the item is assembled at a higher level, order
the item from the higher level of maintenance.
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 below.)
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 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 750-1.
(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:
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