procured for initial issue or outfitting and stocked
This manual lists spares and repair parts; special tools;
only for subsequent or additional initial issues or
special test, measurement, and diagnostic equipment
(TMDE), and other special support equipment required
for performance of organizational, direct support, and
XB - Item is not procured or stocked. If not available
general support maintenance of the S-6401G.
through salvage, requisition.
authorizes the requisitioning and issue of spares and
repair parts as indicated by the source and maintenance
Cannibalization or salvage may be
used as a source of supply for any
items source coded above except
This Repair Parts and Special Tools List is divided into
those coded XA and aircraft support
the following sections:
items as restricted by AR 750-1.
(2) Maintenance code.
and repair parts authorized for use in the performance of
codes are assigned to indicate the levels of maintenance
maintenance. The list also includes parts which must be
authorized to USE and REPAIR support items. The
removed for replacement of the authorized parts.
maintenance codes are entered in the third and fourth
Parts listed are composed of functional groups in
positions of the Uniform SMR Code format as follows:
numeric sequence, with the parts in each group listed in
The maintenance code entered in the
figure and item number sequences. Bulk materials are
third position will indicate the lowest maintenance level
listed in NSN sequence.
authorized to remove, replace, and use the support item.
b. Section III. Special Tools List. Not applicable.
The maintenance code entered in the third position will
indicate one of the following levels of maintenance:
Number Index. A list, in National item identification
number (NWN) sequence, of all National stock numbers
(NSN) appearing in the listings, followed by a list, in
O - Support item is removed, replaced, used at the
alphameric sequence, of all part numbers appearing in
the listings. National stock numbers and part numbers
F - Support item is removed, replaced, used at the direct
are cross-referenced to each illustration figure and item
(b) The maintenance code entered in
the fourth position indicates whether the item is to be
3. Explanation of Columns
repaired and identifies the lowest maintenance level with
a. Illustration. This column is divided as follows:
the capability to perform complete repair (i.e., all
authorized maintenance functions). This position will
(1) Figure number.
Indicates the figure
contain one of the following maintenance codes:
number of the illustration on which the item is shown.
(2) Item number. The number used to identify
F - The lowest maintenance level capable of complete
item called out in the illustration.
repair of the support item is the direct support
b. Source, Maintenance, and Recoverability (SMR)
D - The lowest maintenance level capable of complete
repair of the support item is the depot level.
(1) Source code. Source codes indicate the
Z - Nonreparable. No repair is authorized.
manner of acquiring support items for maintenance,
(3) Recoverability code. Recoverability codes
repair, or overhaul of end items. Source codes are
are assigned to support items to indicate the disposition
entered in the first and second positions of the Uniform
action on unserviceable items. The recoverability code is
SMR Code format as follows:
entered in the fifth position of the Uniform SMR Code
format as follows:
PA - Item procured and stocked for anticipated or known
Z - Nonreparable item. When unserviceable, condemn
PD - Support item, excluding support equipment,
and dispose at the level indicated in position 3.