TM 5-4610-221-20P
Section I. INTRODUCTION
Source codes are entered in the first and second
1. Scope. This manual lists spares and repair
positions of the Uniform SMR Code format as
parts; special tools; special test, measurement, and
follows:
diagnostic equipment (TMDE), and other special
support equipment required for performance of
Code
Definition
organizational maintenance of the water purifica-
tion unit. It authorizes the requisitioning and issue
PA
Item procured
and
of spares and repair parts as indicated by the
stocked for
anticipated or known usage.
source and maintenance codes.
Item procured and stocked for insurance
PB
2. General. This Repair Parts and Special Tools
purposes because essentiality dictates
List is divided into the following sections:
that a minimum quantity be available in
the supply system.
and repair parts authorized for use in the per-
Item procured and stocked and which
PC
formance of maintenance. The list also includes
otherwise would be coded PA except
parts which must be removed for replacement of
that it is deteriorative in nature.
the authorized parts. Parts lists are composed of
PD
support
item,
excluding
support
functional groups in numeric sequence, with the
equipment, procured for initial issue or
parts in each group listed in figure and item
outfitting and stocked only for subse-
number sequence.
quent or additional initial issues or out-
b. Section III. Special Tools List. A list of
fitting. Not subject to automatic
special tools, special TMDE, and other special
replenishment.
support equipment authorized for the performance
PE
Support equipment procured and
of maintenance. (Not Applicable).
stocked for initial issue or outfitting to
c. Section IV. National Stock Number and Part
specified maintenance repair activities..
Number Index. A list, in National item identifica-
PF
Support equipment which will not be
tion Number (NIIN) sequence, of all National stock
stocked but which will be centrally pro-
numbers (NSN) appearing in the listings, followed
cured on demand.
by a list in alphameric sequence of all part
PG
Item procured and stocked to provide
numbers appearing in the listings. National stock
for sustained support for the life of the
numbers and part numbers are cross-referenced to
equipment. It is applied to an item
each illustration figure and item number ap-
peculiar to the equipment which,
pearance. This index is followed by a cross-
because of probable discontinuance or
reference list of reference designators to figure and
shutdown of production facilities, would
item numbers.
prove uneconomical to reproduce at a
later time.
3. Explanation of Columns.
KD
An item of a depot overhaul/repair kit
a. Illustration. This column is divided as
and not purchased separately, Depot kit
follows:
defined as a kit that provides items re-
(1) Figure Number. Indicates the figure
quired at the time of overhaul or repair.
number of the illustration on which the item is
shown.
An item of a maintenance kit and not
KF
(2) Item Number. The number used to identify
purchased separately. Maintenance kit
item called out in the illustration.
defined as a kit that provides an item
that can be replaced at organizational or
b. Source, Maintenance and Recoverability
intermediate levels of maintenance.
(SMR) Codes.
Item included in both a depot
KB
(1) Source Code. Source codes indicate the
overhaul/repair kit and a maintenance
manner of acquiring support items for
kit.
maintenance, repair or overhaul of end items.
