Stocked items; use the applicable NSN to
request/requisition items with these
source codes. They are authorized to the
category indicated by the code entered in
the 3d position of the SMR code.
* * Items coded PC are subject to PG deterioration.
Items with these codes are not to be requisitioned individually. They are part of a
kit which is authorized to the maintenance
category indicated in the 3d position of the SMR code. The complete kit must be requisitioned and
MO-(Made at UMI
Items with these codes are not to be requested/requisitioned individually. They must
be made from bulk material which is identified by the part number in the DESCRIPTION
MF-(Made at DSI
AND USABLE ON CODE (UOC) column and listed in the Bulk Material group of the
repair parts list in this RPSTL. If the item is authorized to you by the 3d position code of
MH-(Made at GS
the SMR code, but the source code indicates it is made at a higher level, order the item
from the higher level of maintenance.
ML-(Made at Spe
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 indicted by the source code. If the 3d position code of the
SMR code authorizes you to replace the item, but the source code indicates 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 following.)
If an "XB" item is not available from salvage, order it using the CAGE and part number given.
Installation drawing, diagram, instruction sheet, field service drawing, that is identified by -the manufacturer's
-Item is not stocked. Order an "XD"-coded item through normal supply channels using the CAGE 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
(2) 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:
(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.