EXPLANATION OF COLUMNS (SECTIONS II AND III).

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UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIS

TM-55-1905-219-20P-2 Landing Craft Utility LCU 1667 Through 1670 NSN 1905-00-168-5764 Manual

Application/Explanation

TM 55-1905-219-20P-2

*Complete Repair: Maintenance capacity, capability, and authority to perform all corrective maintenance tasks of the

"Repair" function in a use/user environment in order to restore serviceability to a failed item.

(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 requested/requisition items with these

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source codes. They are authorized to the category indicated by the code

PC**

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

are 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.

MO - (Made at org/AVUM

Items with these codes are not to be requested/requisitioned

Level)

individually. They must be made from bulk material which

}

MP - (Made at DS/AVUM

is identified by the part number in the DESCRIPTION and

Level)

USABLE ON CODE (UOC) column and listed in the Bulk

MH - (Made at GS Level)

Material group of the repair parts list in this RPSTL. If the

ML - (Made at Specialized

item is authorized to you by the 3rd position code of the SMR

Repair Activity (SRA))

code, but the source code indicates it is made at a higher

MD - (Made at Depot)

level, order the item from the higher level of maintenance.

AO - (Assembled by org/AVUM

Items with these codes are not to be requested/

}

Level)

requisitioned individually. The parts that make up

AF - (Assembled by DS/AVIM

the assembled item must be requisitioned or

Level

fabricated and assembled at the level of

AH - (Assembled by GS

maintenance indicated by the source code. If the

Category)

3rd position code of the SMR code authorizes you

AL - (Assembled by SRA)

to replace the item, but the source code indicates

AD - (Assembled by Depot)

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. (Also, refer to the 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 Recipro-

cating Compressor 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.