TM 10-5410-221-34P-1(a) The maintenance code entered in the thirdposition will indicate the lowest maintenance levelauthorized to remove, replace, and use the supportitem. The maintenance code entered in the thirdposition will indicate one of the following levels ofmaintenance:CodeApplication/ExplanationC Crew or operator maintenance performed withinorganizational maintenance.O Support item is removed, replaced, used at theorganizational level.I Support item is removed, replaced, used by the directsupport element of integrated direct supportmaintenance.F Support item is removed, replaced, used at the directsupport level.H Support item is removed, replaced, used at thegeneral support level.D Support items that are removed, replaced, used atdepot, mobile depot, specialized repair activityonly.NOTECodes "I" and "F" will be consideredthe same by direct support units.(b) The maintenance code entered in the fourthposition indicates whether the item is to be repaired andidentifies the lowest maintenance level with thecapability to perform complete repair (i.e., all authorizedmaintenance functions). This position will contain oneof the following maintenance codes:CodeApplication/ExplanationO The lowest maintenance level capable of completerepair of the support item is the organizationallevel.F The lowest maintenance level capable of completerepair of the support item is the direct supportlevel.H The lowest maintenance level capable of completerepair of the support item is the general supportlevel.D The lowest maintenance level capable of completerepair of the support item is the depot level.L Repair restricted to designated specialized repairactivity.Z Nonreparable. No repair is authorized.B No repair is authorized. The item may bereconditioned by adjusting, lubricating, etc., at theuser level. No parts or special tools are procuredfor the maintenance of this item.(3) Recoverability code. Recoverability codesare assigned to support items to indicate the dispositionaction on unserviceable items. The recoverability codeis entered in the fifth position of the Uniform SMR Codeformat as follows:RecoverabilityCodesDefinitionZ Nonreparable item. When unserviceable, condemnand dispose at the level indicated in position 3.O Reparable item. When uneconomically reparable,condemn and dispose at organizational level.F Reparable item. When uneconomically reparable,condemn and dispose at the direct support level.H Reparable item. When uneconomically reparable,condemn and dispose at the general support level.D Reparable item. When beyond lower level repaircapability, return to depot. Condemnation anddisposal not authorized below depot level.L Reparable item. Repair, condemnation, and disposalnot authorized below depot/specialized repairactivity level.A Item requires special handling or condemnationprocedures because of specific reasons (i.e.,precious metal content, high dollar value, criticalmaterial or hazardous material). Refer toappropriate manuals/directives for specificinstructions.c. National Stock Number. Indicates the Nationalstock number assigned to the item and will be used forrequisitioning purposes.d. Part Number. Indicates the primary numberused by the manufacturer which controls the design andcharacteristics of the item by means of its engineeringdrawings, specifications standards, and inspectionrequirements to identify an item or range of items.NOTEWhen a stock numbered item isrequisitioned, the repair partreceived may have a different partnumber than the part being replaced.e. Federal Supply Code for Manufacturer(FSCM). The FSCM is a 5-digit numeric code listed inSB 708-42 which is used to identify the manufacturer,distributor, or Government agency, etc.f. Description. Indicates the Federal item nameand, if required, and minimum description to identify theitem. Items that are included in kits and sets are listedbelow the name of the kit or set with the quantity of eachitem in the kit or set indicated in the quantityincorporated in unit column. When the part to be useddiffers between serial numbers of the same model, theeffective serial numbers are shown as the last line of thedescription. In the Special Tools List, the initial basis ofissue (BOI) appears as the last line in the entry for eachspecial tool, TMDE, and support equipment. Whendensity of equipments supported exceeds densityspread indicated in the basis of issue, the totalauthorization is increased accordingly.g. Unit of Measure (U/M). Indicates the standardof the basic quantity of the listed item as used inperforming the actual maintenance function. Thismeasure is expressed by a two-character alphabeticalabbreviation (e.g., ea, in, pr, etc.). When the unit ofmeasure differs from the unit of issue, the lowest unit ofissue that will satisfy the required units of measure willbe requisitioned.h. Quantity Incorporated in Unit. Indicates thequantity of the item used in the breakout shown on theillustration figure, which is prepared for a functionalgroup, subfunctional group, or an assembly. A "V"appearing in this2
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