TM 10-4610-234-23PSourceExplanationCodePAPBPC**PDPEPFPGKDKFKBStocked items; use the applicable NSN to request/requisition items with these source codes. Theyare 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 are part of a kit whichis authorized to the maintenance category indicated in the 3rd position of the SMR code. Thecomplete kit must be requisitioned and applied.MO(Made at Unit /Avum Level)MF(Made at DS/AVIM Level)MH(Made at GS Level)MLMade at Specialized RepairActivity (SRA))MD(Made at Depot)AO(Assembled by Unit/AVUMLevel)AF(Assembled by DS/AVIMLevel)AH(Assembled by GS Category)AL(Assembled by SRA)AD(Assembled by Depot)Items with these codes are not to be requested/requisitioned individually.They must be made from bulk material which is identified by the partnumber in the DESCRIPTION and USABLE ON CODE (UOC) columnand listed in the Bulk Material group of the repair parts list in this RPSTL.If 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 itemform 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 orfabricated and assembled at the level of maintenance indicated by thesource code. If the 3rd position code of the SMR code authorizes you toreplace the item, but the source code indicates the items are assembledat a higher level, order the item from the higher level.XADo not requisition "XA"-coded item. Order its next higher assembly. (Refer to the NOTE below.)XBIf an "XB" item is not available from salvage, order it using the CAGEC and part number given.XCInstallation drawing, diagram, instruction sheet, field service drawing, that is identified by manufacturers partnumber.XDItem is not stocked. Order an "XD"-coded item through normal supply channels using the CAGEC and partnumber given, if no NSN is available.NOTECannibalization or controlled exchange, when authorized, may be used as a sourceof 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)MaintenanceCode. Maintenance codes tell you the level(s) of maintenance authorized to USE andREPAIR support items. The maintenance codes are entered in the third and fourth positions of the SMR code as follows:2
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