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TM 10-3930-669-24P
(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 follow:
Code
Explanation
PA
Stocked items; use the
PB
applicable NSN to request/
PC**
requisition items with these
source codes. They are
PD
authorized to the category
PE
indicated by the code entered
PF
in the 3d position of the SMR
code.
PG
**Items coded PC are subject
to deterioration.
KD
Items with these codes are
KF
not to be requested/
requisitioned individually.
They are part of a kit which is
authorized to the
maintenance level indicated
in the 3d position of the SMR
code. The complete kit must
be requisitioned and applied.
MO (Made at
Items with these codes are
UM AVUM Level)
not to be requested/
MF (Made at DS/
requisitioned individually.
AVUM level)
They must be made from bulk
material which is identified
MH (Made at GS
by the part number in the
level)
DESCRIPTION AND
ML (Made at
USABLE ON CODE (UOC)
Specialized
column and listed in the bulk
Repair Act
material group of the repair
(SRA))
parts list in this RPSTL. If
the item is authorized to you
by the 3d position of the SMR
code, but if the MD (Made at
source code indicates it is
made at Depot) is at a higher
level, order the item from the
higher level of maintenance.
Code
Explanation
AO - (Assembled
Items with these codes are
by UM/AVUM
not to be requested/
Level)
requisitioned individually.
AF - (Assembled
The parts that make up the
by DS/AVUM
assembled item must be
Level)
requisitioned or fabricated
and assembled at the level of
AH - (Assembled
by GS Category)
maintenance indicated by the
source code. If the 3d position
AL - (Assembled
code of the SMR code
by SRA)
authorizes you to replace the
AD - (Assembled
item, but the source code
by Depot)
indicates it is assembled at a
higher level, order the item
from the higher level of
maintenance.
Do not requisition an "XA"-
coded item. Order its next
XA
higher assembly. (Also, refer
to the NOTE below.)
If an item is not available
from salvage, order it using
XB
the CAGE and part number
given.
Installation drawing,
diagram, instruction sheet,
XC
field service drawing, that is
identified by manufacturer's
part number.
Item is not stocked. Order an
"XD"-coded item through
XD
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 coded "XA" or those aircraft
support
items
restricted
by
requirements of AR 700-42.
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