TM 11-5820-467-24P
INTRODUCTION
1. Scope
authorized to USE and REPAIR support items. The
This manual lists spares and repair parts; special tools;
maintenance codes are entered in the third and fourth
positions of the Uniform SMR Code format as follows:
special test, measurement, and diagnostic equipment
(TMDE), and other special support equipment required
(a) The maintenance code entered in the third
for performance of organizational, direct support and
position will indicate the lowest maintenance level
general support maintenance of the AN/GRA-50. It
authorized to remove, replace, and use the support
authorizes the requisitioning and issue of spares and
item. The maintenance code entered in the third posi-
repair parts as indicated by the source and mainte-
tion will indicate one of the following levels of mainte-
nance codes.
nance:
Application/Explanation
Code
2. General
O -Support item is removed, replaced, used at the
This Repair Parts and Special Tools List is divided into
organizational level.
the following sections:
F -Support item is removed, replaced, used at the
direct support level.
repair parts authorized for use in the performance of
(b) The maintenance code entered in the fourth
maintenance. The list also includes parts which must
position indicates whether the item is to be repaired
be removed for replacement of the authorized parts.
and identifies the lowest maintenance level with the
Parts lists are composed of functional groups in
capability to perform complete repair (i.e., all
numeric sequence, with the parts in each group listed
authorized maintenance functions). This position will
in figure and item number sequence.
contain one of the following maintenance codes:
b. Section III. Special Tools List. Not applicable.
Application/Explanation
Code
c. Section IV. National Stock Number and Part
F --The lowest maintenance level capable of com-
Number Index. A list, in National item identification
plete repair of the support item is the direct
umber (NIIN) sequence, of all National stock numbers
support level.
(NSN) appearing in the listings, followed by a list, in
z --Nonreparable. No repair is authorized.
alphameric sequence, of all part numbers appearing in
(3) Recoverability code. Recoverability codes are
the listings, National stock numbers and part numbers
assigned to support items to indicate the disposition ac-
are cross-referenced to each illustration figure and
tion on unserviceable items. The recoverability code is
item number appearance.
entered in the fifth position of the Uniform SMR Code
format as follows
3. Explanation of Columns
Recoverability
a. Illustration. This column is divided as follows
Definition
codes
(1) Figure number. Indicates the figure number of
z --Nonreparable item. When unserviceable, con-
the illustration on which the item is shown.
demn and dispose at the level indicated in posi-
(2) Item number. The number used to identify item
tion 3.
called out in the illustration,
F --Reparable item. When uneconomically reparable,
b. Source, Maintenance, and Recoverbility (SMR)
condemn and dispose at the direct support
Codes.
level.
(1) Source code. Source codes indicate the manner
c. National Stock Number. Indicates the National
of acquiring support items for maintenance, repair, or
stock number assigned to the item and will be used for
overhaul of end items. Source codes are entered in the
requisitioning purposes.
first and second positions of the Uniform SMR Code
d. Part Number. Indicates the primary number used
format as follows
by the manufacturer (individual, company, firm, cor-
Definition
Code
poration, or Government activity), which controls the
PA-Item procured and stocked for anticipated or
design and characteristics of the item by means of its
known usage.
engineering drawings, specifications, standards, and
NOTE
inspection requirements to identify an item or range of
Cannibalization or salvage maybe used as a
items.
source of supply for any items source coded
NOTE
above except those coded XA and aircraft
When a stock-numbered item is requisi-
support items as restricted by AR 700-42.
tioned, the repair part received may have a
different part number than the part being
(2) Maintenance code. Maintenance codes are
replaced.
assigned to indicate the levels of maintenance
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