This manual lists spares and repair parts; special
PA-- Item procured and stocked for anticipated or
tools; special test, measurement, and diagnostic
equipment (TMDE), and other special support
equipment required for performance of organizational,
XD-- A support item that is not stocked. When
direct support, and general support maintenance of the
required, item will be procured through
F-1139/GRC. It authorizes the requisitioning and
normal supply channels.
issue of spares and repair parts as indicated by the
source and maintenance codes.
Cannibalization or salvage may be used as a
source of supply for any items source coded
This Repair Parts and Special Tools List is divided
above except those coded XA and aircraft
into the following sections:
support items as restricted by AR 700-42.
and repair parts authorized for use in the performance
(2) Maintenance code. Maintenance codes are
of maintenance. The list also includes parts which
assigned to indicate the levels of maintenance
must be removed for replacement of the authorized
authorized to USE and REPAIR support items. The
parts. Parts lists are composed of functional groups
maintenance codes are entered in the third and fourth
in numeric sequence, with the parts in each group
positions of the Uniform SMR Code format as
listed in figure and item number sequence.
(a) The maintenance code entered in the third
position will indicate the lowest maintenance level
authorized to remove, replace, and use the support
Number Index. A list, in National item identification
item. The maintenance code entered in the third
number (NIIN) sequence, of all National stock
position will indicate one of the following levels of
numbers (NSN) appearing in the listings, followed by
a list, in alphanumeric sequence, of all part numbers
appearing in the listings. National stock numbers and
part numbers are cross-referenced to each illustration
O-- Support item is removed, replaced, used at the
figure and item number appearance.
F-- Support item is removed, replaced, used at the
3. Explanation of Columns
direct support level.
a. Illustration. This column is divided as follows:
(b) The maintenance code entered in the
(1) Figure number. Indicates the figure number
fourth position indicates whether the item is to be
of the illustration on which the item is shown.
repaired and identifies the lowest maintenance level
(2) Item number. The number used to identify
with the capability to perform complete repair (i.e., all
item called out in the illustration.
authorized maintenance functions). This position will
b. Source Maintenance, and Recoverability (SMR)
contain one of the following maintenance codes:
(1) Source code. Source codes indicate the
manner of acquiring support items for maintenance,
Z-- Nonreparable. No repair is authorized.
repair, or overhaul of end items. Source codes are
entered in the first and second positions of the
Uniform SMR Code format as follows: