TM 5-3810-287-24P
XC-
Code
Application Explanation
Installation drawing, diagram, instruction sheet,
PA
Stocked items; use the applicable NSN to
field service drawing, that is identified by the
PB
request/requisition items with these source
manufacturer's part number.
XD-
PC**
Item is not stocked. Order an "XD"-coded item
codes. They are authorized to the category
PD
through normal supply channels using the CAGE and
indicated by the code entered in the 3d
part number given, if no NSN is available.
PE
position of the SMR code.
PF
**Items coded PC are subject to
PG
NOTE: Cannibalization or controlled exchange, when
authorized, may be used as a source of supply for
Items with these codes are not to be
items with the above source codes, except for those
KD
requested/requisitioned individually. They
source coded "XA" or those aircraft support items
KF
are part of a kit which is authorized to the
restricted by requirements of AR 700-42.
KB
maintenance category indicated in the 3d
(2) Maintenance Code. Maintenance codes tell
position of the SMR code. The complete kit
you the level(s) of maintenance authorized to USE and
must be requisitioned and applied.
REPAIR support items. The maintenance codes are
entered in the third and fourth positions of the SMR code
MO-(Made at UM/
Items with these codes are not to
as follows:
AVUM Level)
be requested/requisitioned
(a) The maintenance code entered in the
MF-(Made at DS/
individually. They must be made
third position tells you the lowest maintenance level
AVUM Level)
from bulk material which is
authorized to remove, replace, and use an item. The
MH-(Made at GS
identified by the part number in
maintenance code entered in the third position will
Level)
the DESCRIPTION AND USABLE
indicate authorization to one of the following levels of
ML-(Made at Spe-
ON CODE (UOC) column and
maintenance.
cialized Repair
listed in the Bulk Material group
Activity (SRA)
of the repair parts list in this
Code
Application/Explanation
MD-(Made at
RPSTL. If the item is authorized
C-
Crew or operator maintenance done within
Depot)
to you by the 3d position code of
unit maintenance or aviation unit maintenance.
the SMR code, but the source
O-
Unit maintenance or aviation unit category
code indicates it is made at a higher level, order the item
can remove, replace, and use the item.
from the higher level of maintenance.
F-
Direct support or aviation intermediate level
can remove, replace, and use the item.
Items with these codes are not to
H-
General support level can remove, replace,
be requested/requisitioned
and use the item.
AO-(Assembled by
individually. The parts that make
L-
Specialized repair activity can remove,
UM/AVUM
up the assembled item must be
replace, and use the item.
Level
requisitioned or fabricated and
D-
Depot level can remove, replace, and use
AF-Assembled by
assembled at the level of
the item.
DS/AVIM
maintenance Indicted by the
(b) The maintenance code entered in the
Level
source code. If the 3d position
fourth position tells whether or not the item is to be
AH-(Assembled by
code of the SMR code
repaired and identifies the lowest maintenance level with
GS Category)
authorizes you to replace the
the capability to do complete repair (i.e., perform all
AL-(Assembled by
item, but the source code
authorized repair functions). (NOTE: Some limited re
SRA)
indicates the item Is assembled
pair may be done on the item at a lower level of
AD-(Assembled by
at a higher level, order the item
maintenance, if authorized by the Maintenance
Depot
from the higher level of
Allocation Chart (MAC) and SMR codes.) This position
maintenance.
will contain one of the following maintenance codes:
Code Application/Explanation
O-
Unit maintenance or aviation unit is the lowest
XA-
Do not requisition an "XA"-coded item. Order its
level that can do complete repair of the item.
next higher assembly.
(Also refer to the NOTE
F-
Direct support or aviation intermediate is the
following.)
lowest level than can do complete repair of the item.
XB -
If an "XB" item is not available from salvage,
order it using the CAGE and part number given.
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