TM 9-2330-271-14 & P
Code
Definition
XB.....................Item is not procured or stocked If not available through salvage, requisition.
XC
Installation drawing, diagram, instruction sheet, field
service drawing, that is identified by
manufacturer's
part number.
XD
A support item that is not stocked
When required, item
will be procured through normal supply
channels.
NOTE
Cannibalization or salvage may be used as a source of supply for any item coded above, except those
coded XA and aircraft support items as restricted by AR 70042.
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 and 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
C .......................Crew or operator maintenance performed within organizational
maintenance.
O.......................Support item is removed, replaced, used at the organizational
level.
F .......................Support item is removed, replaced, used at direct support
level.
H .......................Support item is removed, replaced, used at general support
level.
D .......................Support items 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 following maintenance codes:
E-4
