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TM 10-5430-1232-12&P
(1) Source Code. The source code tells you how to get an item needed for maintenance, repair, or
overhaul of an end item/equipment. Explanations of source codes follow:
Code
Explanation
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 AMR code.
**NOTE: Items coded PC are subject to deterioration.
Items with these codes are not to be request/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 applied.
Explanation
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 ed position code of the
SMR code, but the source code indicates it is made at a higher level,
order the item for the higher level of maintenance.
Explanation
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 of the SMR code authorizes you to replace the
item, but the source code indicates the items are assembled at a higher
level, order the item for the higher level maintenance.
Code
Explanation
XA-Do not requisition and "XA" -coded item. Order its next higher assemble. (Also, refer to the NOTE below.)
XB-If an "XB" item is not available for 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 and "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 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.
Change 1 C-2
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