TM 10-8340-240-12&PMODULAR GENERAL PURPOSE TENT SYSTEM (MGPTS) 0021 00REPAIR PARTS LIST0021 00-3the higher level of maintenance.XADo not requisition an "XA" coded item.Order the next higher assembly.(Refer to NOTE below.)XBIf an item is not available from salvage,order it using the CAGEC and P/N.XCInstallation drawings, diagrams,instruction sheets, field servicedrawings; identified by manufacturer'sP/N.XDItem is not stocked. Order an XD-codeditem through normal supply channelsusing the CAGEC and P/N given, If noNSN is available.NOTECannibalization, or controlled exchange, when authorized, may be used as a source of supply for items withthe above source codes except those items source coded "XA" or those aircraft support items restricted byrequirements of AR 750-1.Maintenance Code. Maintenance codes tell you the level(s) of maintenance to use and repair support items.The maintenance codes are entered in the third and fourth positions of the SMR code as follows:Third Position. The maintenance code entered in the third position tells you the lowest maintenance levelauthorized to remove, replace, and use an item. The maintenance code entered in the third position willindicate authorization to the following levels of maintenance:MaintenanceCodeApplication/ExplanationCCrew or operator maintenance done within unit maintenance.OUnit level maintenance can remove, replace, and use the item.FDirect support maintenance can remove, replace, and use the item.HGeneral support maintenance can remove, replace, and use the item.LSpecialized repair activity can remove, replace, and use the item.DDepot can remove, replace, and use the item.Fourth Position. The maintenance code entered in the fourth position tells you whether or not the item is to berepaired and identifies the lowest maintenance level with the capability to do complete repair (perform allauthorized repair functions).
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