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TM 5-4320-300-24P
(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 follows:
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 3rd
position of the SMR code.
**NOTE: Items coded PC are subject to deterioration.
Items with these codes are not to be requested/requisitioned individually. They re part of
a kit which is authorized to the maintenance category indicated in the 3rd position of the
SMR code. The complete kit must be requisitioned and applied.
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. H the item is authorized to you by the 3rd 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 puts 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 3rd position code 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 from the higher level of maintenance.
XA-
Do not requisition "XA"-coded item. Order its next higher assembly. (Refer to the NOTE below.)
XB-
If an UXB" 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 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 700-42.
(2)
Maintenance Code. Maintenance codes tells 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:
PA
PB
PC**
PD
PE
PF
PG
KD
KF
KB
}
}
MO-
(Made at Unit/AVUM
Level)
MF-
(Made at DS/AVUM
Level)
MH-
(Made at GS Level)
ML-
(Made at Specialized
Repair Activity (SRA))
MD-
(Made at Depot)
AO-
(Assembled by
Unit/AVUM Level)
AF-
(Assembled by
DS/AVIM Level)
AH-
(Assembled by GS
Category)
AL-
(Assembled by SRA)
AD-
(Assembled by Depot)
}
}
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