(1) Source Code . The source code tells you how you get an item needed for maintenance, repair, or overhaul
of an end item/equipment. Source codes are always the first two positions of the SMR code. Explanation of source
Stocked items; use the applicable NSN to request/requisition items with this code. This item is authorized
to the category indicated by the code entered in the 3d position of the SMR code.
(2) Maintenance Code . Maintenance codes tell you the level(s) of maintenance authorized to USE and
REPAIR support items. The maintenance codes are entered in the third and fourth positions of the SMR code as follows:
(a) The maintenance code entered in the third position tells the maintenance level authorized to remove,
replace, and use an item. The maintenance code entered in the third position will indicate authorization to the following
level of maintenance.
Direct support level can remove, replace, and use the item.
(b) The maintenance code entered in the fourth position tells you whether or not the item is to be
repaired and identifies the lowest maintenance level with the capability to do complete repair (i.e., perform all authorized
repair functions). This position will contain one ,if the following codes.
Direct support is the lowest level that can do complete repair of the item.
Nonrepairable. No repair is authorized.
(3) Recoverability Code . Recoverability codes are assigned to items to indicate the disposition action on
unserviceable items. The recoverability code is entered in the fifth position of the SMR code as follows:
Reparable item. When uneconomically reparable, condemn and dispose of the item at the direct support
Nonrepairable item. When unserviceable, condemn and dispose of the item at the level of maintenance
shown in the third position of the SMR code.
Item requires special handling or condemnation procedures because of specific reasons (i.e., precious
metal content, high dollar value, critical material, or hazardous material). Refer to appropriate manuals/
directives for specific instructions.
c. FSCM (Column (3)). The Federal Supply Code for Manufacturer (FSCM) is a 5-digit numeric code which is used
to identify the manufacturer, distributor, or Government agency, etc., that supplies the item.
d. PART NUMBER (Column (4)). Indicates the primary number used by the manufacturer (individual, company,
firm, corporation, or Government activity), which controls the design and characteristics of the item by means of its
engineering drawings, specifications standards, and inspection requirements to identify an item or range of items.