Cannibalization or salvage may be used as a
This manual lists spares and repair parts; special tools;
source of supply for any items source coded
special test, measurement, and diagnostic equipment
above except those coded XA and aircraft sup-
(TMDE), and other special support equipment required
port items as restricted by AR 700-42.
for performance of direct support and general support
(2) Maintenance code. Maintenance codes are
maintenance of the MD-522A/GRC. It authorizes the re-
assigned to indicate the levels of maintenance authorized
quisitioning and issue of spares and repair parts as indi-
to USE and REPAIR support items. The maintenance
cated by the source and maintenance codes.
codes are entered in the third and fourth positions of the
Uniform SMR Code format as follows
This Repair Parts and Special Tools List is divided into the
(a) The maintenance code entered in the third
position will indicate the lowest maintenance level
a. Section II. Repair Parts List. A list of spares and
authorized to remove, replace, and use the support item.
repair parts authorized for use in the performance of
The maintenance code entered in the third position will
maintenance. The list also includes parts which must be
indicate one of the following levels of maintenance:
removed for replacement of the authorized parts. Parts
lists are composed of functional groups in numeric se-
F - Support item is removed, replaced, used at the
quence, with the parts in each group listed in figure and
direct support level.
item number sequence.
H - Support item is removed, replaced, used at the
b. Section III. Special Tools List. Not applicable.
general support level.
c. Section IV. National Stock Number and Part Num-
D - Support items that are removed, replaced, used at
ber Index. A list, in National item identification number
depot, mobile depot, specialized repair activity
(NIIN) sequence, of all National stock numbers (NSN)
appearing in the listings, followed by a list, in alphameric
(b) The maintenance code entered in the fourth
sequence, of all part numbers appearing in the listings.
position indicates whether the item is to be repaired and
National stock numbers and part numbers are cross-
identifies the lowest maintenance level with the capability
referenced to each illustration figure and item number ap-
to perform complete repair (i.e., all authorized mainte-
nance functions). This position will contain one of the
following maintenance codes:
3. Explanation of Columns
a. Illustration. This column is divided as follows:
F - The lowest maintenance level capable of complete
(1) Figure number. Indicates the figure number of
repair of the support item is the direct support
the illustration on which the item is shown.
(2) Item number. The number used to identify item
D - The lowest maintenance level capable of complete
called out in the illustration.
repair of the support item is the depot level.
b. Source, Maintenance, and Recoverability (SMR)
Z - Nonreparable. No repair is authorized.
(3) Recoverability code. Recoverability codes are
(1) Source code. Source codes indicate the manner
of acquiring support items for maintenance, repair, or
assigned to support items to indicate the disposition action
overhaul of end items. Source codes are entered in the
on unserviceable items. The recoverability code is entered
first and second positions of the Uniform SMR Code for-
in the fifth position of the Uniform SMR Code format as
mat as follows:
PA - Item procured and stocked for anticipated or known
Z - Nonreparable item. When unserviceable, condemn
and dispose at the level indicated in position 3.
B - Item procured and stocked for insurance purpose
H - Reparable item. When uneconomically reparable,
because essentiality dictates that a minimum
condemn and dispose at the general support
quantity be available in the supply system.
XA - Item is not procured or stocked because the re-
D - Reparable item. When beyond lower level repair
quirements for the item will result in the replace-
capability, return to depot. Condemnation and
ment of the next higher assembly.
disposal not authorized below depot level.
XD - A support item that is not stocked. When required,
L - Reparable item. Repair, condemnation, and dis-
item will be procured through normal supply
posal not authorized below depot/specialized