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Aviation Unit Maintenance Repair Parts and Special Tools List for Countermeasures Set AN-ALQ-139(V)1

1. Scope 
This manual lists spares and repair parts, special tools; 
ial test, measurement, and diagnostic equipment 
(KDE), and other special support equipment required for 
Derformance of aviation unit maintenance (AVUM), of the 
It authorizes the requisitioning and issue 
of spares and repair parts as indicated by the source and 
maintenance codes. 
2. General 
This Repair Parts and Special Tools List is divided into the 
following sections: 
a. Section ll. Repair Parts List. A list of spares and 
repair parts authorized for use in the performance of 
maintenance. The list also includes parts which must be 
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. 
b. Section Ill. Special Tools List. Not applicable. 
c. Section IV National Stock Number and Part Number 
Index. A list, in National item identification number (NIIN) 
sequence, of all National stock numbers (NSN) appearing 
in the listings, followed by a list, in alphameric sequence, 
of all part numbers appearing in the listings. National 
stock numbers and part numbers are cross-referenced to 
each illustration figure and item number appearance. 
3. Explanation of Columns 
a Illustration. This column is divided as follows: 
(1) Figure number. Indicates the figure number of the 
illustration on which the item is shown. 
(2) Item number. The number used to identify item 
called out in the illustration. 
b. Source, Maintenance, and Recoverability (SMR) 
(1) Source code. Source codes indicate the manner of 
acquiring support items for maintenance, repair, or 
overhaul of end items. Source codes are entered in the 
and second positions of the Uniform SMR Code format as 
follows: 
PA - Item procured and stocked for anticipated or 
known usage. 
NOTE 
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 750-1.