item called out in the illustration.
b. Source, Maintenance, and Recoverability (SMR)
This manual lists spares and repair parts; special
tools; special test, measurement, and diagnostic
(1) Source code. Source codes indicate the man-
Equipment (TMDE), and other special support equip-
ner of acquiring support items for maintenance, re-
ment required for performance of organizational
pair, or overhaul of end items. Source codes are en-
maintenance on the AN/VRC-24, AN/VRC-24A,
tered in the first and second positions of the Uniform
AN/TRC-68, and AN/TRC-68A. It authorizes the
SMR Code format as follows:
requisitioning and issue of spares and repair parts as
indicated by the source and maintenance codes.
PA-Item procured and stocked for anticipated or
PD-Support item, excluding support equipment,
procured for initial issue or outfitting and stocked
only for subsequent or additional initial issues or
outfitting. Not subject to automatic replenishment.
XD-A support item that is not stocked. When re-
quired, item will be procured through normal supply
Cannibalization or salvage may be used as a
source of supply for any items source coded
above except those coded XA and aircraft
support items as restricted by AR 700-42.
(2) Maintenance code. Maintenance codes are as-
signed to indicate the levels of maintenance author-
ized to USE and REPAIR support items. The main-
tenance codes are entered in the third and fourth
positions of the Uniform SMR Code format as fol-
(a) The maintenance code entered in the third
3 . Explanation of Columns
position will indicate the lowest maintenance level
a. Illustration. This column is divided as follows:
authorized to remove, replace, and use the support
item. The maintenance code entered in the third po-
(1) Figure number. Indicates the figure number
of the illustration on which the item is shown.
sition will indicate one of the following levels of
(2) Item number. The number used to identify