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
(TMDE), and other special support equipment required
support items as restricted by AR 700-42.
for performance of organizational maintenance of the
(2) Maintenance code. Maintenance codes are
SM-756/APR-44(V). It authorizes the requisitioning
assigned to indicate the levels of maintenance authoriz-
and issue of spares and repair parts as indicated by the
e d to USE and REPAIR support items. The
source and maintenance codes.
maintenance codes are entered in the third and fourth
positions of the Uniform SMR Code format as follows:
(a) The maintenance code entered in the third
This Repair Parts and Special Tools List is divided into
the following sections:
position will indicate the lowest maintenance level
authorized to remove, replace, and use the support
a. Section II. Repair Parts List. A list of spares and
repair parts authorized for use in the performance of
item. The maintenance code entered in the third
maintenance. The list also includes parts which must be
position will indicate one of the following levels of
removed for replacement of the authorized parts. Parts
lists are composed of functional groups in numeric
sequence, with the parts in each group listed in figure
and item number sequence.
O - Support item is removed, replaced, used at the
b. Section III. Special Tools List. Not applicable.
c. Section IV. National Stock Number and Part
(b) The maintenance code entered in the fourth
Number Index. A list, in National item identification
position indicates whether the item is to be repaired and
number (NIIN) sequence, of all National stock numbers
identifies the lowest maintenance level with the capabili-
(NSN) appearing in the listings, followed by a list, in
ty to perform complete repair (i.e., all authorized
alphameric sequence, of all part numbers appearing in
maintenance functions). This position will contain one
the listings. National stock numbers and part numbers
of the following maintenance codes:
are cross-referenced to each illustration figure and item
D- The lowest maintenance level capable of complete
3. Explanation of Columns
repair of the support item is the depot level.
a. Illustration. This column is divided as follows:
Z- Nonreparable. No repair is authorized.
(1) Figure number. Indicates the figure number of
(3) Recoverability code. Recoverability codes
the illustration on which the item is shown.
are assigned to support items to indicate the disposition
(2) Item number. The number used to identify
action on unserviceable items. The recoverability code is
item called out in the illustration.
entered in the fifth position of the Uniform SMR Code
b. Source, Maintenance, and Recoverability (SMR)
format as follows:
(1) Source code. Source codes indicate the man-
ner of acquiring support items for maintenance, repair,
Nonreparable item. When unserviceable,
or overhaul of end items. Source codes are entered in
condemn and dispose at the level
the first and second positions of the Uniform SMR
indicated in position 3.
Code format as follows:
Reparable item. When beyond lower level
repair capability, return to depot. Con-
PA- Item procured and stocked for anticipated or
demnation and disposal not authorized
below depot level.
c. National Stock Number. Indicates the National
XD- A support item that is not stocked. When re-
stock number assigned to the item and will be used for
quired, item will be procured through normal