to remove, replace, and use an item. The maintenance code entered in the third position will indicate authorization to one
of the following categories of maintenance.
C-Crew or operator maintenance done within organizational or aviation maintenance.
O-Organizational or aviation unit category can remove, replace, and use the item.
F-Direct support or aviation intermediate category can remove, replace, and use the item.
H-General support category can remove, replace, and use the item.
L-Specialized repair activity can remove, replace, and use the item.
D-Depot category can remove, replace, and use the item.
(b) The maintenance code entered in the fourth position tells whether or not the item is to be repaired and
identifies the lowest maintenance category with the capability to do complete repair (i.e., perform all authorized repair
functions). This position will contain one of the following maintenance codes.
Some limited repair may be done on the item at a lower category of maintenance, if au-
thorized by the Maintenance Allocation Chart (MAC) and SMR codes.
O-Organizational or aviation unit is the lowest category that can do complete repair of the item.
F-Direct support or aviation intermediate is the lowest category that can do complete repair of the item.
H-General support is the lowest category that can do complete repair of the item.
L-Specialized repair activity (designate the specialized repair activity) is the lowest category that can do complete repair of
D-Depot is the lowest category that can do complete repair of the item.
Z-Nonreparable. No repair is authorized.
B-No repair is authorized. (No parts or special tools are authorized for the maintenance of a "B" coded item). However,
the item may be reconditioned by adjusting, lubricating, etc., at the user category.
(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:
Z--Nonreparable Item. When unserviceable, condemn and dispose of the item at the category of maintenance shown in
the third position of SMR Code.
O-Reparable item. When uneconomically reparable, condemn and dispose of the item at organizational or aviation unit
F-Reparable item. When uneconomically reparable, condemn and dispose of the item at direct support or aviation
H-Reparable item. When uneconomically reparable, condemn and dispose of the item at general support category.
D-Reparable item. When beyond lower category repair capability, return to depot. Condemnation and disposal of item not
authorized below depot category.
L-Reparable item. Condemnation and disposal not authorized below specialized repair activity (SRA).
A-Item requires special handling or condemnation procedures because of specific reasons (e.g., precious metal content,
high dollar value, critical material, or hazardous material). Refer to appropriate manuals/directives for specific
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.
When you use a NSN to requisition an item, the item you receive may have a different part
number from the part ordered.
e. Description and Usable on Code (UOC) (Column (5)). This column includes the following information.
(1) The Federal item name and, when required, a minimum description to identify the item.
(2) In the Special Tools section, the basis of issue (BOI) appears as the last line in the entry for each special
tool, special TMDE, and other special support equipment. When density of equipment's supported exceeds density
spread indicated in the basis of issue, the total authorization is increased proportionately.