T M 9 - 4 9 3 1 - 3 8 1 - 1 4 & P -2
Source
Maintenance
Recoverability
Code
Code
Code
How you get an item
3rd position
Who can install,
replace or use
the item
4th position
Who determines
disposition action on
Who can do
an unserviceable
complete repair*
item
on the item
*Complete Repair:
Maintenance capacity, capability, and authority to perform all the corrective
maintenance tasks of the “Repair” function in a use/user environment in order to restore serviceability
to a failed item.
(1) Source Code. The source code tells you how you get an item needed for maintenance, repair,
or overhaul of an end item/equipment.
Source codes are always the first two positions of the SMR
code. Explanations of source codes follow:
Code
Explanation
PA
PB
PC
Stocked items; use the applicable NSN to request/requisition items
PD
with these source codes. They are authorized to the category
PE
indicated by the code entered in the 3rd position of the SMR code.
PF
PG
KD
KF
KB
Items with these codes are not to be requested/requisitioned
individually. They are part of a kit which is authorized to the
maintenance category indicated in the 3rd position of the SMR code.
The complete kit must be requisitioned and applied.
MO - (Made at erg)
MF - (Made at DS)
MH - (Made at GS)
MD- (Made at
Depot)
Items with these codes are not to be requested/requisitioned
individually. They must be made from bulk material which is
identified by NSN in the Description column and listed in the Bulk
Material group in the repair parts list in this manual. If the item is
authorized to you by the 3rd position code of the SMR code, but the
source code indicates it is made at a higher category, order the item
from the higher category of maintenance.
AO - (Assembled by
erg)
Items with these codes are not to be requested/requisitioned
individually. The parts that make up the assembled item must be
requisitioned or fabricated and assembled at the category of
A-2
Volume IV
Para. A-3
