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TM 11-6625-1576-24P
SECTION I
INTRODUCTION
1. Scope.
This manual lists repair parts required for per-
formance of organizational and general support
maintenance of the AN/URM-180 and the
AN/URM-184A.
2. General.
This Repair Parts and Special Tools List is divided
into the following sections:
a. Section II. Repair Parts List. A list of 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 ascending numerical sequence, with the
parts in each group listed in figure and item
number sequence.
b. Section III. Special Tools List. Not ap-
plicable.
c. Section IV. National Stock Number and Part
Number Index. A list, in ascending numerical
sequence, of all National stock numbers 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 figure and
item number appearance.
3. Explanation of Columns.
The following provides an explanation of columns
found in the tabular listings:
a. Illustration.
This column is divided as
follows:
(1) Figure number. Indicates the figure
number of the illustration in which the item is
shown.
(2) Item number. The number used to identify
each item called out in the illustration.
b. Source,
Maintenance,
and Recoverability
Codes (SMR).
(1) Source code. Source codes are assigned to
support items to indicate the manner of acquiring
support items for maintenance, repair, or overhaul
of end items. Source codes are entered in the first
and second positions of the uniform SMR Code
format as follows:
Code
Definition
PA – Item procured and stocked for anticipated or
known usage.
XD – A support item that is not stocked. When
Code
Definition
required, item will be procured through
normal supply channels.
AH – Item to be assembled at general support
maintenance level.
NOTE
Cannibalization or salvage may be 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.
(2) Maintenance code. Maintenance codes are
assigned to indicate the levels of maintenance
authorized to USE and REPAIR support items.
The maintenance codes are entered in the third
and fourth positions of the Uniform SMR Code
format as follows:
(a) The maintenance code entered in the
third position will indicate the lowest maintenance
level authorized to remove, replace, and use the
support item. The maintenance code entered in the
third position will indicate one of the following
levels of maintenance:
Code
Application/Explanation
O – Support item is removed, replaced, used at the
organizational level.
H – Support item is removed, replaced, used at the
general support level.
(b) The maintenance code entered in the
fourth position indicates whether the item is to be
repaired and identifies the lowest maintenance level
with the capability to perform complete repair (i.e.,
all authorized maintenance functions). This
position will contain one of the following main-
tenance codes:
Code
Application/Explanation
H – The lowest maintenance level capable of
complete repair of the support item is the
general support level.
Z – Nonreparable. No repair is authorized.
(3) Recoverability code. Recoverability codes
are assigned to support items to indicate the
disposition action on unserviceable items. The
recoverability code is entered in the fifth position
of the Uniform SMR Code format as follows:
Recoverability
Code
Definition
Z — Nonreparable item. When unserviceable,
condemn and dispose at the level indicated
in position 3.
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