0019 00
TM 5-5430-248-13&P
AD-Assembled by depot
AG-Navy only
XA
Do not requisition an "XA" coded item. Order the next higher
assembly. (Refer to NOTE below.)
XB
If an item is not available from salvage, order it using the
CAGEC and part number.
XC
Installation drawings, diagrams, instruction sheets, field
service drawings; 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.
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 items source coded "XA" or those aircraft support items
restricted by requirements of AR 750-1.
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:
Third Position. 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 the following levels of maintenance:
Maintenance
Application/Explanation
Code
O* -
Unit level/AVUM maintenance can remove, replace, and use the item.
F-
Direct support/AVIM maintenance can remove, replace, and use the item.
H-
General support maintenance can remove, replace, and use the item.
L-
Specialized repair activity can remove, replace, and use the item.
G-
Afloat and ashore intermediate maintenance can remove, replace, and use the
item (Navy only)
K-
Contractor facility can remove, replace, and use the item
Z-
Item is not authorized to be removed, replace, or used at any maintenance level
D-
Depot can remove, replace, and use the item.
*NOTE - Army may use C in the third position. However, for joint service publications,
Army will use O.
Fourth Position. The maintenance code entered in the fourth position tells you whether or not the item is
to be repaired and identifies the lowest maintenance level with the capability to do complete repair
(perform all authorized repair functions).
NOTE
Some limited repair may be done on the item at a lower level of maintenance,
0019 00-3