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TM 9-5130-338-12&P
NOTE
Cannibalization or controlled exchange, when authorized, may be used as a source of supply for
items with the above source codes, except for those source coded "XA."
XA ................ Do not requisition an XA coded item. Order its next higher assembly.
XB ................ If an XB item is not available from salvage, order it using the Commercial and Government
Entity Code (CAGEC) and part number given.
XC................ Installation drawing, diagram, instruction sheet, field service drawing, that is identified by
manufacturer's part number.
XD................ Item is not stocked. Order an XD coded item through normal supply channels using the CAGEC
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 3rd and 4th positions of the SMR code as
follows:
(a)
The maintenance code entered in the 3rd position tells you the lowest maintenance level authorized
to remove, replace, and use an item. The maintenance code entered in the 3rd position will indicate
authorization to one of the following levels of maintenance.
CODE
APPLICATION/EXPLANATION
C .................. Crew or operator maintenance done within unit maintenance or aviation unit maintenance.
O.................. Unit maintenance or aviation unit can remove, replace, and use the item.
F .................. Direct support or aviation intermediate level can remove, replace, and use the item.
H .................. General support level can remove, replace, and use the item.
L................... .Specialized Repair Activity (SRA) can remove, replace, and use the item.
D .................. Depot level can remove, replace, and use the item.
NOTE
If authorized by the Maintenance Allocation Chart and SMR codes, some limited repair may be
done on an item at a lower level of maintenance.
(b)
The maintenance code entered in the 4th position tells whether 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 maintenance codes.
CODE
APPLICATION/EXPLANATION
O.................. Unit maintenance or aviation unit is the lowest level that can do a complete repair of the item.
D-3
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