ARMY TM 9-1290-262-24&P
MARINE CORPS TM 00476C-24&P
AIR FORCE TO 49A7-3-72/74
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 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 the
SMR code, but the source code indicates it is made at a higher level,
order the item from the higher level of maintenance.
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 indicated 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.
(Also, refer to the
XA - Do not requisition an "XAn-coded item. Order its next higher assembly
NOTE below.)
XB - If an "XB" item is not available from salvage, order it using the CAGEC and part number given.
XC - Installation drawing, diagram, instruction sheet, field service drawing, that is 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 source coded "XA" or those aircraft support
items restricted by requirements of AR 750-1.
(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:
C-3
