EXPLANATION OF COLUMNS IN THE REPAIR PARTS LIST AND SPECIAL TOOLS LIST WORK
PACKAGES - Continued
Table 2. Source Code 1st and 2nd Positions - Continued.
source code indicates the item is assembled at a higher level, order the item
AL (Assembled by
from the higher level of maintenance.
AD (Assembled by
Do not requisition an "XA" coded item. Order its next higher assembly.
If an "XB" item is not available from salvage; order it using the CAGEC and part
Installation drawing, diagram, instruction sheet and field service drawing that
is identified by manufacturer's part number.
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 this source code.
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:
Maintenance Code 3rd Position.
Field level can remove, replace, and use the item.
Sustainment level can remove, replace, and use the item.
Specialized repair activity can remove, replace, and use the item.
Contractor facility can remove, replace and use the item.
Item is not authorized to be removed, replaced, or used at any maintenance
Depot level can remove, replace, and use the item.
*NOTE: Army may use C in the third position. However, for joint service publications, Army will use
The maintenance code entered in the 4th position tells whether or not 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).