SECTION I
TM 9-2320-283-24P
(1) Source Code. The source code tells you how to
get an item needed for maintenance, repair or overhaul
of an end item/equipment. Explanations of source codes
follows:
Code
Application/Explanation
PA
Stocked items; use the applicable NSN to
PB
request/requisition items with these
PC**
source codes. They are authorized to the
PD
catagory indicated by the code entered in
PE
3d position of the SMR code.
PF
PG
**Items coded PC are subject to deterioration.
KD
Items with these codes are not to be
KF
requested/requisitioned individually. They
KB
are part of a kit which is authorized to the
maintenance category indicated in the
3d
position of the SMR code. The complete kit
must be requisitioned and applied.
MO -(Made at UM
Items with these codes are not to
AVUM Level)
be requested/requisitioned indi-
MF -(Made at DS/
vidually. They must be made
AVUM Level)
from bulk material which is iden-
tiflied by the part number in the
DESCRIPTION AND USABLE ON
CODE (UOC) column and listed in
the Bulk Material group
ML-(Made at
of the repair parts list in this
Specialized Repair
RPSTL. If the item is authorized
Act (SRA))
to you by the 3d position code of
the SMR code, but if the MD
-(Made at
source code indictes it is made
Depot)
at a higher level, order the item
from
the
higher
level
of
maintenance.
AO -(Assembled by
Items with these codes are not
UM/AVUM Level)
to
be
requested/requistioned
individually The parts that
AF-(Assembled by
make up the assembled item
DS/AVUM Level)
must be requistioned or fabricated
and assembled at the level
AH -(Assembled by
of manintenance indicated by
GS Catagory)
the source code. If the 3d position
code of the SMR code by
AL-(Assembled by
authorizes you to replace the
SRA)
item, but the source code indi-
cates the item is assembled at a
AD-(Assembled
bled at a higher level, order the
by Depot)
item from the higher level of
maintenance.
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 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 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 or aviation unit maintainance.
O -
Unit maintenance or aviation unit category
can remove, replace and use the item.
F -
Direct support or aviation intermediate
level can remove, replace and use the item.
H -
General support level can remove, replace
and use the item.
L -
Specialized repair activity can remove, replace
and use the item.
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