TM 9-4931-494-34P
(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. Explanation of source codes follows:
Code
Explanation
PA -
Stocked items; use the applicable NSN to request/requisition items with this code. This
item is authorized to the category indicated by the code entered in the 3d position of the
SMR code.
XD -
Item is not stocked. Order an "XD" coded item through normal supply channels using the
FSCM and part number given, if no NSN is available.
(2) Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized
to USE and REPAIR support items. The maintenance codes are entered in the third and fourth
positions of the SMR code as follows:
(a) The maintenance code entered in the third position tells you the lowest maintenance level authorized to
remove, replace, and use an item. The maintenance code entered in the third position will indicate authorization to the
following level of maintenance.
Code
Application/Explanation
F
-Direct support level can remove, replace, and use the item.
(b) The maintenance code entered in the fourth position tells you whether or not the
item is to be repaired and identifies the lowest maintenance level with the capability to do
complete repair (i.e., perform all authorized repair functions). This position will contain one of
the following codes.
Code
Application/Explanation
F
-Direct support is the lowest level that can do complete repair of the item.
Z
-Nonreparable. No repair is authorized.
(3) Recoverability Code. Recoverability codes are assigned to items to indicate the
disposition action on unserviceable items. The recoverability code is entered in the fifth position
of the SMR code as follows:
Recoverability
Definition
Codes
Z
-Nonreparable item. When unserviceable, condemn and dispose of the item at
the level of maintenance shown in the third position of the SMR code.
F
-Reparable item. When uneconomi cally reparable, condemn and dispose of the
item at the direct support level.
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