AO- (Assembled by
AF- (Assembled by
AH- (Assembled by
AL- (Assembled by
AD- (Assembled by
Items with these codes are not to be requested/requisitioned individually. The
parts 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 indicated the item is assembled at a higher level, order the item
from the higher level of maintenance.
Do not requisition an XA-coded item. Order its next higher assembly. (Also, refer to the NOTE below.)
If an XB item is not available from salvage, order it using the CAGEC and part number given.
Installation drawing, diagram, instruction sheet, field service drawing, that is identified by manufacturers part
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.
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.
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:
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.
- Crew or operator maintenance done within organizational maintenance.
- Unit Maintenance can remove, replace, and use the item.
- Direct support level can remove, replace, and use the item.
- General support level can remove, replace, and use the item.
- Specialized repair activity can remove, replace, and use the item.
- Depot level can remove, replace, and use the item.