TM 9-4520-272-14&P
0093 00
Source Code. The source code tells you how to get an item needed for maintenance, repair, or overhaul of
an end item/equipment. Explanation of source codes follows.
Source Code
Explanation
PA
Stock items; use the applicable NSN to request/requisition items
PB
with these source codes. They are authorized to the category
PC**
indicated by the code entered in the third position of the SMR code.
PD
PE
NOTE: Items coded PC are subject to deterioration.
PF**
PG
KB
Items with these codes are not to be requested/requisitioned individually.
KD
They are part of a kit which is authorized to the maintenance level
KF
indicated in the 3rd position of the SMR code. The complete kit must be
requisitioned and applied.
MO-(Made at Unit/
Items with these codes are not to be requested/requisitioned individually.
AVUM Level)
They must be made from bulk material which is identified by the
MF-(Made at DS/
P/N in the DESCRIPTION AND USABLE ON CODE (UOC)
AVIM Level)
column and listed in the bulk material group work package of the
MH-(Made at GS
RPSTL. If the item is authorized to you by the 3rd position
Level)
code of the SMR code, but the source code indicates it is made at
ML-(Made at Spe-
a higher level, order the item from the higher level of maintenance.
cialized Repair
Act (SRA))
MD-(Made at
Depot)
AO-(Assembled by
Items with these codes are not to be requested/requisitioned
Unit/AVUM Level)
individually. The parts that make up the assembled item must be
AF-(Assembled by
requisitioned or fabricated and assembled at the level of
DS/AVIM Level)
maintenance indicated by the source code. If the third position
AH-(Assembled by
code of the SMR code authorizes you to replace the item, but the
GS level)
source code indicates the item is assembled at a higher level,
AL-(Assembled by
order the item from the higher level of maintenance.
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 CAGEC 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
CAGEC and part number given, if no NSN is available.
0093 00-2
