TM 9-6115-651-14&P
Code
MF
MD
AO
Definition
Item to be manufactured or fabricated at general support maintenance levels.
Item to be manufactured or fabricated at depot maintenance level.
Item to be assembled at unit level.
AF
Item to be assembled at direct support maintenance level.
AH
Item to be assembled at general support maintenance level.
AD
Item to be assembled at depot maintenance level.
XA
Item is not procured or stocked because the requirements for the item will
result in the replacement of the next higher assembly.
XB
Item is not procured or stocked. If not available through salvage, requisition.
xc
Installation drawing, diagram, instruction sheet, field service drawing, that is
identified by manufacturer’s part number.
XD
A support item that is not stocked. When required, item will be procured through
normal supply channels.
(2) Maintenance codes: GENERAL: Maintenance Codes are assigned to indicate the levels of maintenance
authorized to USE and REPAIR support items. The Maintenance Codes are in the third and fourth position of the
Uniform SMR Code Format.
(a) Use (third position): The Maintenance Code entered in the third position indicates the lowest level
maintenance level authorized to remove, replace, and use the support item. The Maintenance Code entered in
the third position indicates one of the following levels of maintenance.
Code
Application/Explanation
O
Support item is removed, replaced, used at the unit level of maintenance.
F
Support item is removed, replaced, used at direct support level.
H
Support item is removed, replaced, used general support level.
Code
Definition
D
Support items that are removed, replaced, used at depot only: Depot, Mobile
Depot and Specialized Repair Activity.
D-3
