TM 5-4310-372-24P
3. Explanation of Columns (Sections II and Ill).
a. Item No. (CoIumn (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/requisitioning information, maintenance category authorization criteria, and disposition
instructions, as shown in the following breakout:
How you get an item
Maintenance
Recoverability
1st two
positions
3rd position
4th position
Who determines
. .
Who can install,
Who can do
replace or use
complete repair*
the item
on the item
disposition
action on an
unserviceable
item
H
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 to get an item needed for maintenance, repair, or overhaul
of an end item/equipment. Explanations of source codes follows:
Code
PA
PB
PC**
PD
PE
PF
PG
KD
KF
KB
Explanation
Stocked items; use the applicable NSN to request/requisition items with these
source codes. They are authorized to the category indicated by the code entered
in the 3rd position of the SMR code.
**NOTE: Items coded PC are subject to deterioration.
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.
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