TM 9-4310-394-23P
3. EXPLANATION OF COLUMNS (Sections II and III).
a. Item No. (Column (1)). Indicates the number used to identify items called out in the illustration.
b. SMR Code (Column (2)). The Source, Maintenance, and Recoverability (SMR) code is a 5-position code
containing supply and requisitioning information, maintenance category authorization criteria, and disposition
instruction, as shown in the following breakout:
Source
Maintenance
Recoverability
Code
Code
Code
P A O Z Z
1st two positions
3d position
4th position
5th position
How you get an
Who can install,
Who can do
Who determines
item.
replace or use
complete
disposition action
the item.
repair on
on an
the item
unserviceable
item.
*Complete Repair: Maintenance capacity, capability, and authority to perform all
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. 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.
2
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