Installation drawing, diagram, instruction
Stocked items; use the applicable NSN to
sheet, field service drawing, that is identified
by the manufacturer's part number.
request/requisition Items with these source
Item is not stocked. Order an "XD"-coded
codes. They are authorized to the category
item through normal supply channels using
indicated by the code entered in the 3d
the CAGE and part number given, if no NSN
position of the SMR code.
NOTE Cannibalization or controlled exchange, when
** Items coded PC are subject to PG
authorized, may be used as a source of supply for items
with the above source codes, except for those source
Items with these codes are not to be
coded "XA" or those aircraft support items restricted by
requested/requisitioned individually. They
requirements of AR 700-42.
are part of a kit which is authorized to the
(2) Maintenance Code. Maintenance codes tell
maintenance category indicated in the 3d
you the level(s) of maintenance authorized to USE and
position of the SMR code. The complete kit
REPAIR support items. The maintenance codes are
must be requisitioned and applied.
entered in the third and fourth positions of the SMR code
MO-(Made at UMI
Items with these codes are not
(a) The maintenance code entered in the third
position tells you the lowest maintenance level
MF-(Made at DSI
individually. They must be made
authorized to remove, replace, and use an item. The
from bulk material which is
maintenance code entered in the third position will
MH-(Made at GS
identified by the part number in the
indicate authorization to one of the following levels of
DESCRIPTION AND USABLE ON
CODE (UOC) column and
ML-(Made at Spe-
listed in the Bulk Material group
Crew or operator maintenance done within unit
of the repair parts list in this
maintenance or aviation unit maintenance.
RPSTL. If the item is authorized
Unit maintenance or aviation unit category can
to you by the 3d position code of
remove, replace, and use the item.
the SMR code, but the source
Direct support or aviation intermediate level can
code indicates it is made at a
remove, replace, and use the item.
higher level, order the item from
General support level can remove, replace, and
the higher level of maintenance.
use the item.
Items with these codes are not to
Specialized repair activity can remove, replace,
and use the item.
individually. The parts that make
Depot level can remove, replace, and use the
up the assembled item must be
requisitioned or fabricated and
(b) The maintenance code entered in the fourth
at the level of
position tells whether or not the item is to be repaired
indicted by the
and identifies the lowest maintenance level with the
source code. If the 3d position
capability to do complete repair (i.e., perform all
code of the SMR code
authorized repair functions). (NOTE: Some limited repair
authorizes you to replace the
may be done on the item at a lower level of maintenance,
item, but the source code
if authorized by the Maintenance Allocation Chart (MAC)
indicates the item is assembled
and SMR codes.). This position will contain one of the
at a higher level, order the item
following maintenance codes:
from he higher level of
Unit maintenance or aviation unit is the lowest
Do not requisition an "XA"-coded Item.
level that can do complete repair of the item.
Order its next higher assembly. (Also refer
Direct support or aviation intermediate is the
to the NOTE following.)
lowest level than can do complete repair of the
If an "XB" item is not available from salvage,
order it using the CAGE and part number