TM 10-4130-237-24P
(1)
Source Code. The source code tells you how you get an item needed for maintenance, repair, or
overhaul of an end item/equipment. Explanations of source codes follow.
Code
Explanation
PA
PB
Stocked items; use the applicable NSN to request/requisition items with these
PC**
source codes. They are authorized to the category indicated by the code
PD
entered in the 3rd position of the SMR code.
PE
PF
**NOTE : Items coded PC are subject to deterioration.
PG
KD
Items with these codes are not to be requested/requisitioned individually. They
KF
are part of a kit which is authorized to the maintenance category indicated in
KB
the 3rd position of the SMR code. The complete kit must be requisitioned and
applied.
MO (Made at org AVUM
Items with these codes are not to be requested/requisitioned
level)
individually. They must be made from bulk material which is
MF (Made at DS/AVUM
identified by the part number in the DESCRIPTION and USABLE
level)
ON CODE (UOC) column and listed in the Bulk Material group of the
MH (Made at GS level)
repair parts list in the RPSTL. If the item is authorized to you by the
ML (Made at Specialized
3rd position code of the SMR code, but the source code indicates it
Repair Activity (SRA))
is made at a higher level, order the item from the higher level of
MD (Made at Depot)
maintenance.
AO (Assembled by org
Items with these codes are not to be requested/requisitioned
AVUM
individually. The parts that make up the assembled item must be
Level)
requisitioned or fabricated and assembled at the level of
AF (Assembled by
maintenance indicated by the source code. If the 3rd position code
DS/AVUM
of the SMR code, authorizes you to replace the item, but the
Level)
source code indicates the items are assembled at a higher level,
AH (Assembled by GS
order the item from the higher level of maintenance.
Category)
AL (Assembled by SRA)
AD (Assembled by Depot)
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 Code and part number given.
XC-
Installation drawing, diagram, instruction sheet, field service drawing, that is identified by manufacturer's
part number.
XD-
Item is not stocked. Order an "XD"-coded item through normal supply channels using the CAGE Code
and part number given, if no NSN is available.
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