TM 5-3805-257-24P
Code
Application/Explanation
PA
Stocked items; use the applicable NSN to
PB
request/requisition items with these source
PC**
codes. They are authorized to the category
PD
indicated by the code entered in the 3d
PE
position of the SMR code.
PF
** Items coded PC are subject to PG
deterioration.
Items with these codes are not to be
KD
requested/requisitioned individually. They
KF
are part of a kit which is authorized to the
KB
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
AVUM Level)
to be requested/requisitioned
MF-(Made at DS/
Individually. They must be
AVUM Level)
madefrom bulk material which is
MH-(Made at GS
identified by the part number in
Level)
the DESCRIPTION AND
ML-(Made Spe-)
USABLE ON CODE (UOC)
cialized Repair
column and listed in the Bulk
Activity (SRA)
Material group of the repair
MD-(Made at
parts list in this RPSTL. If the
Depot)
item is authorized to you by the
3d position code of the SMR
code,
but
the
source
code
indicates it is made at a higher
level, order the item from the
higher level of maintenance.
Items with these codes are not
to be requested/requisitioned
AO-(Assembled by
individually. The parts that
UMI AVUM
makeup the assembled item
Level)
must be requisitioned or
AF-(Assembled by
fabricated and assembled at the
DSIAVIM
level of maintenance indicted by
Level)
the source code. If the 3d
AH-(Assembled by
position code of the SMR code
GS Category
authorizes you to replace the
AL-(Assembled by
item, but the source code
SRA)
indicates the item is assembled
AD-(Assembled by
at a higher level, order the item
Depot)
from the higher level of
maintenance.
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
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.
D
Depot level can remove, replace, and use the
item.
(b)
The maintenance code entered in
the fourth position tells whether or not the item is to be
repaired and identifies the lowest maintenance level with
the capability to do complete repair (i.e., perform all
authorized repair functions). (NOTE: Some limited repair
may be done on the item at a lower level of maintenance,
if authorized by the Maintenance Allocation Chart (MAC)
and SMR codes.) This position will contain one of the
following maintenance codes:
Code
Application/Explanation
O -
Unit maintenance or aviation unit is the lowest
level that can do complete repair of the item.
F
Direct support or aviation intermediate is the
lowest level than can do complete repair of the
item.
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