TM-9-2320-285-24P
TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2 ARMY MODEL M878A1
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LISTS
JUNE 1992
TM-9-2320-285-24P - Page 9 of 537
TM 9-2320-285-24P
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
PG
**
Items coded PC are subject to
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 to
AVUM Level)
be requested/requisitioned
MF
-(Made at DS/
individually.
They must be made
AVUM Level)
from bulk material which is
MH
-(Made at GS
identified by the part number in
Level)
the DESCRIPTION AND USABLE
ON CODE (UOC) column and
ML
-(Made at Spe-
listed in the Bulk Material group
cialized Repair
of the repair parts list in this
Activity (SRA))
RPSTL.
If the item is authorized
MD
-(Made at
to you by the 3rd position code of
Depot)
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 make
UM/ AVUM
up the assembled item must be
Level)
requisitioned or fabricated and
AF
-(Assembled by
assembled at the level of
DS/AVIM
maintenance indicted by the
Level)
source code.
If the 3d position
AH
-(Assembled by
ode of the SMR code
GS Category)
authorizes you to replace the
item, but the source code
AL
-(Assembled by
indicates the item is assembled
SRA)
at a higher level, order the item
AD
-(Assembled by
from the higher level of
Depot)
maintenance.
XA
-
Do not requisition an "XA"-coded item.
Or-
der 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 identifier
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, re-
place, 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.
2
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