TM 55-6610-247-40
Code
Explanation
such part or assembly should result in retirement of the end item from the supply system.
AK
Repair parts which are not procured or stocked. The requirement for such items will be filled by
the next higher assembly or component.
X2
Repair parts, special tools, and test equipment which are not stocked and have no foreseen
mortality. The indicated maintenance category requiring such repair parts will attempt to obtain the
parts through cannibalization or salvage. The item may be requisitioned with exception data, from
the end item manager, for immediate use.
G
Major assemblies that are procured with PEMA funds for initial issue only as exchange assemblies
at DSU and GSU level. These assemblies will not be stocked above the DS and GS level or
returned to depot supply level.
NOTE
Cannibalization or salvage may be used as a source of supply for any items source coded
above except those coded X1 and air craft support items as restricted by AR 70042.
(2) Maintenance code indicates the lowest category of maintenance authorized to install the
listed item. The maintenance level codes are:
Code
Explanation
C
Crew or operator maintenance.
O
Organizational maintenance.
F
Direct support maintenance.
H
General support maintenance.
(3) Recoverability code indicates whether unserviceable items should be returned for recovery or salvage. Items
not coded are nonrecoverable. Recoverability codes are:
Code
Explanation
R
Applied to repair parts (assemblies and components), special tools and test equipment which are
considered economically reparable at direct and general support maintenance levels. when the
item is no longer economically reparable, it is normally disposed of at the GS level. 'when supply
considerations dictate, some of these repair parts may be listed for automatic return to supply for
depot level repair as set forth in AR 71050. When so listed, they will be replaced by supply on an
exchange basis.
S
Repair parts, special tools, test equipment and assemblies which are economically reparable at
DSU and GSU activities and which normally are furnished by supply on an exchange basis. When
items are determined by a GSU to be uneconomically reparable, they will be evacuated to a depot
for evaluation and analysis before final disposition.
T
Higher dollar value recoverable repair parts, special tools, and test equipment which are subject to
special handling and are issued on an exchange basis. Such items will be repaired or overhauled
at depot maintenance activities only. No repair may be accomplished at lower levels.
U
Repair parts. special tools and test equipment specifically selected for salvage by reclamation
units because of precious metal content, critical materials, high dollar value or reusable casings or
castings.
b. Federal Stock Number, Column 2. Indicates the Federal stock number assigned to the item and will be used for
requisitioning purposes. Items source coded A. XI. XI. or X2 are not assigned a Federal stock number.
c. Description, Column 3. Indicates the Federal item name and any additional description of the
B-2
