Section I. INTRODUCTION - TM-55-1730-219-20P0006

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

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-

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-

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

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) 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.

------

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