TM 5-3820-233-24P
Code
Application/Explanation
XC -
Installation drawing, diagram, Instruction
sheet, field service drawing, that Is Identified
PA
Stocked items; use the applicable NSN to
by the manufacturer's part number.
PB
request/requisition items with these source
XD -
Item is not stocked. Order an "XD"-coded
PC**
codes. They are authorized to the category
item through normal supply channels using
PD
indicated by the code entered in the 3d
the CAGE and part number given, if no NSN
PE
position of the SMR code.
is available.
PF
* * Items coded PC are subject to
NOTE
PG
Cannibalization or controlled exchange, when
Items with these codes are not to be
authorized, may be used as a source of
KD
requested/requisitioned individually. They
supply for items with the above source
KF
are part of a kit which is authorized to the
codes, except for those source coded "XA" or
maintenance category indicated in the 3d
those aircraft support items restricted by
KB
position of the SMR code. The complete kit
requirements of AR 700-42.
must be requisitioned and applied.
(2) Maintenance Code. Maintenance codes
M - (Made at UM/
Items with these codes are not to
tell you the level(s) of maintenance authorized to USE
AVUM Level)
be requested/requisitioned
and REPAIR support items. The maintenance codes are
MF - (Made at DSI
individually. They must be made
entered in the third and fourth positions of the SMR code
AVUM Level)
from bulk material which is
as follows:
MH - (Made at GS
identified by the part number in
(a) The maintenance code entered in
Level)
the DESCRIPTION AND USABLE
the third position tells you the lowest maintenance level
ML - (Made at Spe-
ON CODE (UOC) column and
authorized to remove, replace, and use an item. The
cialized Repair
listed in the Bulk Material group
maintenance code entered in the third position will
Activity (SRA))
of the repair parts list in this
indicate authorization to one of the following levels of
MD - (Made at
RPSTL. If the item is authorized
maintenance.
Depot)
to you by the 3d position code of
Code
Application/Explanation
the SMR code, but the source
code indicates it is made at a
C-
Crew or operator maintenance done within
higher level, order the item from
unit maintenance or aviation unit maintenance.
the higher level of maintenance.
O-
Unit maintenance or aviation unit category
can remove, replace, and use the item.
Items with these codes are not to
F-
Direct support or aviation intermediate level
be requested/requisitioned
can remove, replace, and use the item.
AO - (Assembled by individually. The parts that make
H-
General support level can remove, replace,
UMI AVUM
up the assembled item must be
and use the item.
Level)
requisitioned or fabricated and
L-
Specialized repair activity can remove, re-
AF - (Assembled by assembled at the level of
place, and use the item.
DS/AVIM
maintenance indicted by the
D-
Depot level can remove, replace, and use
Level)
source code. If the 3d position
the item.
AH - (Assembled by code of the SMR code
GS Category)
(b) The maintenance code entered in
authorizes you to replace the
AL-(Assembled item, but the source code
the fourth position tells whether or not the item is to be
by SRA)
repaired and identifies the lowest maintenance level with
indicates the item is assembled
AD - (Assembled by at a higher level, order the item
the capability to do complete repair (i.e., perform all
Depot)
authorized repair functions). (NOTE: Some limited
from the higher level of
repair may be done on the item at a lower level of
maintenance.
maintenance, if authorized by the Maintenance Allocation
XA -
Chart (MAC) and SMR codes.) This position will contain
Do not requisition an "XA"-coded item. Order
one of the following maintenance codes:
its next higher assembly. (Also refer to the
NOTE following.)
Code
Application/Explanation
XB -
If an "XB" item is not available from salvage,
order it using the CAGE and part number
O-
Unit maintenance or aviation unit is the low-
given.
est level that can do complete repair of the
item.
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