TM 55-1680-320-23 & P
Code
XB
x c
XD
Item is not procured or stocked. If not available through
salvage requisition.
Installation drawing, diagram, instruction sheet, field
service drawing, that is identified by manufacturers part
number.
A support item that is not stocked. When required item will
be procured through normal supply channels.
NOTE
Cannibalization or salvage, when authorized, maybe used as a source of supply for any items coded above,
except those coded XA and aircraft support items as restricted by AR 700-42.
(2) Maintenance Code. Maintenance codes are assigned to indicate the levels of maintenance authorized to USE
and REPAIR support items. The maintenance codes are entered in the third or fourth positions of the Uniform SMR Code
format as follows:
(a) The maintenance code entered in the third position will indicate the lowest maintenance level authorized
to remove, replace, and use the support item.
The maintenance code entered in the third position will indicate one of the
following levels of maintenance.
Code
Application / Explanation
O
Support item is removed, replaced, used at the
organizational level.
F
Support item is removed, replaced, used at the direct
support level.
D
Support items that are removed,replaced, used at depot,
mobile depot, or specialized repair activity only.
(b) The maintenance code entered in the fourth position indicates whether the item is to be repaired and
identifies the lowest maintenance level with the capability to perform complete repair (i.e., all authorized maintenance
functions). This position will contain one of the foIlowing maintenance codes.
Code
Application / Explanation
o
The lowest maintenance level capable of complete repair of
the support item is the organizational level.
F
The lowest maintenance level capable of complete repair of
the support item is the direct support level.
D
The lowest maintenance level capable of complete repair of
the support item is the depot level.
C-3
D e f i n i t i o n