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TM-55-1730-219-20P Jack Hydrualic Aircraft 5-Ton Type A-5 PN 53D22020 Manual
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How to Locate Repair Parts. - TM-55-1730-219-20P0007
TM 55-1730-219-20P
Section I. INTRODUCTION
tered in the first and second positions of the Uni-
1. Scope.
form SMR Code format as follows:
This manual lists spares and repair parts re-
quired for performance of Aviation Unit Mainte-
Code
Definition
nance (AVUM) of the 5 ton hydraulic aircraft hand
jack, type A-5, PN 53D22020. It authorizes the
PA
Item procured and stocked for an-
requisitioning and issue of spares and repair parts
ticipated or known usage.
as indicated by the source and maintenance
Item procured and stocked for in-
PB
codes. NOTE: For detailed explanation of the
surance purpose because essen-
Three Levels of Maintenance Concept, see Ap-
t i a l i t y dictates that a minimum
pendix A to this Section.
quantity be available in the supply
2. General.
systems.
This Repair Parts and Special Tools List is di-
PC
I t e m procured and stocked and
vided into the following sections:
which otherwise would be coded PA
e x c e p t that it is deteriorative in
a.  S e c t i o n Il. Repair Parts List. A list of
nature.
spares and repair parts authorized for use in the
performance of maintenance. Parts are listed in
XD
A support item that is not stocked.
figure and item number sequence. Items are in-
When required, item will be pro-
dented when required to indicate the relationship
cured through normal supply
to the next higher assembly.
channels.
b. Section ///. Special Tools List. (Not Appli-
cable).
NOTE
c. Section IV. National Stock Number and
Cannibalization or salvage may be used
Part Number Index. A list, in ascending National
as a source of supply for any items
Item Identification Number (NIIN) sequence, of all
source coded above except aircraft sup-
National stock numbers appearing in the listings,
port items as restricted by AR 700-42.
followed by a list, in alphameric sequence, of all
(2) Maintenance Code. Maintenance
part numbers appearing in the listings. National
codes are assigned to indicate the levels of main-
stock number and part numbers are cross-refer-
tenance authorized to USE and REPAlR support
enced to each illustration figure and item number
items. The maintenance codes are entered in the
appearance.
third and fourth positions of the Uniform SMR
3. Explanation of Columns.
Code format as follows:
i//ustration. This column is divided as fol-
a.
(a) The maintenance code entered
lows:
in the third position will indicate the lowest main-
tenance level authorized to remove, replace, and
(1) Figure Number. Indicates the figure
use the support item. The maintenance code en-
number of the illustration in which the item is
tered in the third position will indicate the follow-
shown.
ing level of maintenance:
(2) Item Number. The number used to
Code
Application/Explanation
identify each item called out in the illustration.
O
------
Support item is removed, replaced,
b. Source, Maintenance, and Recoverability
used at the Aviation Unit Mainte-
Codes (SMR).
nance (AVUM) level.
(1) Source Code. Source codes are as-
signed to support items to indicate the manner of
acquiring support items for maintenance, repair,
(b) The maintenance code entered
or overhaul of end items. Source codes are en-
in the fourth position indicates whether the item is

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