TM 11-6625-2697-24P
SECTION I.
INTRODUCTION
(2) Maintenance code. Maintenance codes are
1. Scope
assigned to indicate the levels of maintenance
This manual lists repair parts required for performance of
authorized to USE and REPAIR support items. The
organi7ational and general support maintenance of the
maintenance codes are entered in the third and fourth
AN/USM-44C.
positions of the Uniform SMR Code format as follows:
(a) The maintenance code entered in the third
2. General
position will indicate the lowest maintenance level
This Repair Parts and Special Tools List is divided into
authorized to remove, replace, and use the support item.
the following sections:
The maintenance codes entered in the third position will
indicate one of the following levels of maintenance:
parts authorized for use in the performance of
Code
Application/Explanation
maintenance. The list also includes parts which must be
O - Support item is removed, replaced, used at the
removed for replacement of the authorized parts. Parts
organizational level.
lists are composed of functional groups in ascending
H - Support item is removed, replaced, used at the
numerical sequence, with the parts in each group listed
general support level.
in figure and item number sequence.
(b) The maintenance code entered in the
b. Section III. National Stock Number and Part
fourth position indicates whether the item is to be
Number Index. A list, in ascending numerical sequence,
repaired and identifies the lowest maintenance level with
of all National stock numbers appearing in the listings,
the capability to perform complete repair (i.e., all
followed by a list, in alphanumeric sequence, of all part
authorized maintenance functions). This position will
numbers appearing in the listings.
National stock
contain one of the 'following maintenance codes:
numbers and part numbers are cross-referenced to each
illustration figure and item number appearance.
Code
Application/Explanation
H - The lowest maintenance level capable of complete
repair of the support item is the general support
3. Explanation of Columns
level.
The following provides an explanation of columns found
Z - Nonreparable. No repair is authorized.
in the tabular listings:
(3) Recoverability code. Recoverability codes are
a. Illustration. This column is divided as follows:
assigned to support items to indicate the disposition
(1) Figure number.
Indicates the figure
action on unserviceable items. The recoverability code is
number of the illustration in which the item is shown.
entered in the fifth position of the Uniform SMR Code
(2) Item number. The number used to identify
format as follows:
each item called out in the illustration.
Recoverability
b. Source, Maintenance, and Recoverability Codes
(SMR).
Codes
Definition
(1) Source code. Source codes are assigned
Z - Nonreparable item. When unserviceable, condemn
to support items to indicate the manner of acquiring
and dispose at the level indicated in position 3.
support items for maintenance, repair, or overhaul of end
H - Reparable item. When uneconomically repairable,
items. Source codes are entered in the first and second
condemn and dispose at the general support level.
positions of the Uniform SMR Code format as follows:
c. National Stock Number. Indicates the National
stock number assigned to the item and will be used for
Code
Definition
requisitioning purposes.
PA - Item procured and stocked for anticipated or known
d. Part Number. Indicates the primary number
usage.
used by the manufacturer (individual, company, firm,
XD - A support item that is not stocked. When required,
corporation, or Government activity), which controls the
item will be procured through normal supply
design and characteristics of the item by means of its
channels.
engineering drawings, specifications standards, and
NOTE
inspection requirements, to identify an item or range of
Cannibalization or salvage may be
items.
used as a source of supply for any
items source-coded above, except
those coded XA, XD, and aircraft
support items as restricted by AR
700-42.
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