Section III. NUMERICAL INDEX

TM 55-4920-328-13

Section III. NUMERICAL INDEX

7-8. General.

b. Figure and Index Number. The figure and index

number column lists the figure and index number where

This section provides a cross-index to the Group

the part number may be found in the Group Assembly

Assembly Parts List contained in Section II. Included in

Parts List section.

the numerical listing contained in each table are the part

number, figure and index number, source coding for parts

c. Source Codes.

in the Group Assembly Parts List portion of this chapter.

The tables are identified as follows:

The SOURCE CODE column contained in table 7-2

provides component procurement information explained

7-2

Modular Engine Test System

as follows:

7-3

T53 Turboshaft Engine

7-4

T53 Turboprop Engine

(1)

Series - Purchased Items

7-5

T55 Turboshaft Engine

7-6

T63 Engine

Applied to Repair Parts which

7-7

T74 Turboprop Engine

are high mortality parts; stocked

7-8

T73 Engine

in and supplied from the

7-8.1

T700 METS Test Adapter and

GSA/DSA or Army System and

Engine Torque Indicator

authorized for use at indicated

maintenance echelons.

7-9. Numerical Index Column Data.

Support equipment procured and

a. Part Number. The part number column lists the

stocked for initial issue or

part numbers of identifying nouns in alphanumeric order.

outfitting to specified maintenance

Part number arrangement begins at the extreme left-hand

repair activities.

position and continues from left to right, one position at a

Applied to Repair Parts which are

time, until all parts are arranged in sequence. The order of

low mortality; stocked in or

precedence for part numbers arrangement is as follows:

supplied

from

commodity

command depots and authorized

First Position:

Letters A through Z

for

installation

indicated

Numerals 0 through 9

maintenance echelons.

Second and Suc-

(2)

R Series - Reparable Items

ceeding Posi-

tions:

Space

Reparable - Applied to repair

Diagonal (/)

parts and assemblies which are

Point(.)

economically reparable at field

Dash(-)

maintenance activities (3rd and

Letters A through Z

4th Echelon) and normally are

Numerals 0.through 9

furnished by supply on an

exchange basis.

Change 1 7-373