SECTION I. INTRODUCTION
(1) Source code. Source codes indicate the
This manual lists spares and repair parts; special tools;
manner of acquiring support items for maintenance,
special test, measurement, and diagnostic equipment
repair, or overhaul of end items. Source codes are
(TMDE); and other special support equipment required
entered in the first and second positions of the Uniform
for the performance of direct support and general
SMR Code format as follows:
support maintenance of the Tank Periscope, M35E1. It
authorizes the requisitioning and issue of spares and
repair parts as indicated by the source and maintenance
PA ............... Item procured and stocked for anticipated
or known usage.
PB .............. Item procured and stocked for insurance
purposes because essentially dictates that
This Repair Parts and Special Tools List is divided into
a minimum quantity be available in the
the following sections:
PC ............... Item procured and stocked and which
repair parts authorized for use in the performance of
otherwise would be coded PA except that it
maintenance. The list also includes parts which must be
is deteriorate in nature.
removed for replacement of the authorized parts. Parts
lists are composed of functional groups in numeric
equipment, procured for initial issue or
sequence, with the parts in each group listed in figure
and item number sequence. Bulk materials are listed in
National stock number (NSN) sequence.
subject to automatic replenishment.
PE .............. Support equipment procured and stocked
for initial issue or outfitting to specified
tools, special TMDE, and other special support
maintenance repair activities.
equipment authorized for the performance of
PF ............... Support equipment which will not be
stocked but which will be centrally procured
PG ............... Item procured and stocked to provide for
Number Index. A list in National item identification
sustained support for the life of the
number (NIIN, the last nine figures of the NSN)
equipment. It is applied to an item peculiar
sequence, of all National stock numbers (NSNs)
to the equipment which, because of
appearing in the listings, followed by a list in
probable discontinuance or shutdown of
alphanumeric sequence of all part numbers appearing in
the listings. National stock numbers and part numbers
uneconomical to reproduce at a later time.
are cross-referenced to each illustration figure and item
KD ............... An item of a depot overhaul/repair kit and
not purchased separately. Depot kit defined
as a kit that provides items required at the
3. Explanation of Columns
time of overhaul or repair.
a. Illustration. This column is divided as follows:
KF................ An item of a maintenance kit and not
purchased separately. Maintenance kit
(1) Figure numbers. Indicates the figure number
defined as a kit that provides an item that
of the illustration on which the item is shown.
can be replaced at organizational or
intermediate levels of maintenance.
(2) Item number. The number used to identify
KB ............... Item included in both a depot over-
item called out in the illustration.
haul/repair kit and a maintenance kit.
b. Source, Maintenance, and Recoverability (SMR)