REPAIR PARTS AND SPECIAL TOOLS LIST
Section I. INTRODUCTION
C-1 SCOPE. This appendix lists spares and repair parts;
special tools; special Test, Measurement, and Diagnostic
PA - Item procured and stocked for anticipated or
Equipment (TMDE), and other special support equipment
required for performance of organizational, direct support,
and general support maintenance of the Sound Recorder-
XA - Item is not procured or stocked because the require-
Reproducer Set AN/UNH-17A. It authorizes the requisi-
ments for the item will result in the replacement of
tioning and issue of spare and repair parts as indicated by
the next higher assembly.
the source and maintenance codes.
XB - Item is not procured or stocked. If not available
C-2 GENERAL. This Repair Parts and Special Tools List is
through salvage, requisition.
divided into the following sections:
NOTE: Cannibalization or salvage may be used as a source
a. Section II. Repair Parts List. A list of spares and
of supply for any items coded above except those coded
repair parts authorized for use in the performance of main-
XA and aircraft support items as restricted by AR 700-42.
tenance. The list also includes parts which must be removed
for replacement of the authorized parts. Parts lists are com-
(2) Maintenance Code. Maintenance codes are
posed of functional groups in numeric sequence, with the
assigned to indicate the levels of maintenance authorized to
parts in each group listed in figure and item number
USE and REPAIR support items. The maintenance codes
are entered in the third and fourth positions of the uniform
b. Section III. Special Tools List. Not applicable.
SMR code format as follows:
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)
position will indicate the lowest maintenance level autho-
appearing in the listings, followed by a list in alphanumeric
rized to remove, replace, and use the support item. The
sequence of all part numbers appearing in the listings.
maintenance code entered in the third position will indicate
National stock numbers and part numbers are cross-
one of the following levels of maintenance:
referenced to each illustration figure and item number
F - Support item is removed, replaced, used at the
C-3 EXPLANATION OF COLUMNS.
direct support level.
a. Illustration This column is divided as follows:
position indicates whether the item is to be repaired and
(1) Figure Number. Indicates the figure number of
identifies the lowest maintenance level with the capability
the illustration on which the item is shown.
to perform complete repair; i.e., all authorized maintenance
(2) Item Number. The number used to identify
item called out in the illustration.
functions. This position will contain one of the following
b. Source, Maintenance, and Recoverability (SMR)
F - The lowest maintenance level capable of complete
(1) Source Code. Source codes indicate the manner
of acquiring support items for maintenance, repair, or over-
repair of the support item is the direct support level.
haul of end items. Source codes are entered in the first and
second positions of the uniform SMR code format as
D - The lowest maintenance level capable of complete
repair of the support item is the depot level.