TM 5-4310-358-24P
Items with these codes are not to be requested/ requisitioned
individually. The puts that make up the assembled item must be
requisitioned or fabricated and assembled at the level of maintenance
indicated by the source code. If the 3rd position code of the SMR code
authorizes you to replace the item, but the source code indicates the
items are assembled at a higher level, order the item from the higher
level of maintenance.
Code
Explanation
XA-
Do not requisition "XA"-coded item. Order its next higher assembly. (Refer to the NOTE below.)
XB-
If an UXB item is not available from salvage, order it using the CAGEC and part number given.
XC-
Installation drawing, diagram, instruction sheet, field service drawing, that is identified 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.
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" or those aircraft support
items restricted by requirements of AR 750-1.
(2)
Maintenance Code. Maintenance codes tells 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 one of the following levels of maintenance.
Code
Application/Explanation
C --Crew or operator maintenance done within organizational or aviation unit maintenance.
O --Organizational or aviation unit category can remove, replace, and use the item.
F --Direct support or aviation intermediate level can remove, replace, and use the item.
3
}
AO-
(Assembled by
Unit/AVUM Level)
AF-
(Assembled by
DS/AVIM Level)
AH-
(Assembled by GS
Category)
AL-
(Assembled by SRA)
AD-
(Assembled by Depot)
