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TM 5-4120-351-24P
Section I. INTRODUCTION
1. Scope.
This manual lists spares and repair parts; spe-
cial tools; special test, measurement, and diagnostic
equipment (TMDE), and other special support
equipment required for performance of or-
ganizational, direct support, and general support
maintenance of the Air Conditioner. It authorizes
the requisitioning and issue of spares and repair
parts as indicated by the source and maintenance
codes.
2. General.
This Repair Parts and Special Tools List is di-
vided into the following sections:
a. Section II. Repair Parts List. A list
of spares and 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 func-
tional groups in numeric sequence, with the parts in
each group listed in figure and item number se-
quence. Bulk materials are listed in NSN sequence.
b. Section III. Special Tools List. A list of spe-
cial tools, special TMDE, and other special support
equipment authorized for the performance of main-
tenance.
c. Section IV. national Stock Number and
Part Number Index. A list, in National item iden-
tification number (NIIN) sequence, of all National
stock numbers (NSN) appearing in the listings, fol-
lowed by a list in alphameric sequence of all part
numbers appearing in the listings. National stock
numbers and part numbers are cross-referenced to
each illustration figure and item numbe appear-
ance. This index is followed by a cross-reference list
of reference designators to figure and item num-
bers.
3. Explanation of Columns.
a. Illustration. This column is divided as
follows:
(1) Figure Number. Indicates the figure
number of the illustration on which the item is
shown.
(2) Item Number. The number used to iden-
KD
KF
tify item called out in the illustration.
b. Source, Maintenance, and Recoverability
(SMR) Codes.
(1) Source Code. Source codes indicate the
manner of acquiring support items for mainte-
nance, 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 antici-
pated or known usage.
PB
Item procured and stocked for insur-
ance purpose because essentiality dic-
tates that a minimum quantity be
available in the supply system.
PC
Item procured and stocked and which
otherwise would be coded PA except
that it is deteriorative in nature.
PD
Support item, excluding support equip
ment, procured for initial issue or out-
fitting and stocked only for subsequent
or additional initial issues or out-
fitting. Not subject to automatic
replenishment.
PE
Support equipment procured and
stocked for initial issue or outfitting to
s p e c i f i e d m a i n t e n a n c e r e p a ir
activities.
PF
Support equipment which will not be
stocked but which will be centrally
procured on demand.
PG
Item procured and stocked to provide
for sustained support for the life of the
equipment. It is applied to an item
peculiar to the equipment which, be-
cause of probable discontinuance or
shutdown of production facilities,
would prove uneconomical to re-
produce at a later time.
An item of a depot overhaul/repair kit
and not purchased separately. Depot
kit defined as a kit that provides item
required at the time of overhaul or
repair.
An item of a maintenance kit and not
purchased separately. Maintenance kit
defined as a kit that provides an item
that can be replaced at organizational
or intermediate levels of maintenance.
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