EXPLANATION OF COLUMNS (SECTION II) (CONT).

TM 3-4240-302-30&P-1

B-3. EXPLANATION OF COLUMNS (SECTION II) (CONT).

(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 SMR.

PC**

code

**NOTE

Items coded PC are subject to deterioration.

Items with these codes are not to be requested/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

MO - (Made at Org/AVUM Level)

Items with these codes are not to be requested/requisitioned individually

MF - (Made at DS/AVUM Level)

They must be made from bulk material which is identified by the part number

MH - (Made at GS Level)

in the DESCRIPTION AND USABLE ON CODE (UOC) column and listed in the

ML - (Made at Specialized Repair Act)

Bulk Material group of the repair parts list in this RPSTL If the item is

authorized

(SRA)

to you by the 3d position code of the SMR code, but the source code indicates

MD - (Made at Depot)

it is made at a higher level, order the item from the higher level of

maintenance

Code

Explanation

AO - (Assembled by Org/AVUM Level)

Items with these codes are not to be requested/requisitioned individually. The

AF - (Assembled by DS/AVIM Level)

parts that make up the assembled item must be requisitioned or fabricated and

AH - (Assembled by GS Category)

assembled at the level of maintenance indicated by the source code If the

AL - (Assembled by SRA)

3d position code of the SMR code authorizes you to replace the item, but the

AD - Assembled by Depot)

source code indicates the item is assembled at a higher level, order the item

from the higher level of maintenance.

XA Do not requisition an "XA"-coded item. Order its next higher assembly. (Also, refer to the NOTE below.)

XB If an "XB" item is not available from salvage, order it using the FSCM and part number given.

XC Installation drawing, diagram, instruction sheet, field service drawings, that is identified by manufacturer's part

number.

XD Item is not stocked. Order an "XD"-coded item through normal supply channels using the FSCM 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.

B-2