Section I. INTRODUCTION - TM-5-6675-250-20P0005

TM 5-6675-250-20P

Section I.

INTRODUCTION

(1) Source code. Source codes are assigned to

1. Scope.

support items to indicate the manner of acquiring

This manual lists repair parts, special tools, test,

support items for maintenance, repair, or overhaul of

measurement, and diagnostic equipment (TMDE),

end items. Source codes are entered in the first and

and other support equipment required for operation

second positions of the Uniform SMR Code format as

and performance of- organizational maintenance of

follows;

the azimuth gyro survey instrument.

2. General.

a. Section II Repair Parts List. A list of repair

parts authorized for use in the performance of

maintenance. The list. also includes parts which must

be removed for replacement of the authorized parts.

Parts lists are composed of functional groups in

ascending numerical sequence, with the parts in each

group listed in figure and item number sequence,

Bulk materials are listed in NSN sequence, as the last

group in Section II.

b. Section III - Special Tools List. A list of special

tools, TMDE, and support equipment authorized for

the performance of maintenance at the organizational

level.

c. Section IV - National Stock Number and Part

Number Index. A list, in ascending numerical se-

quence, of all National stock numbers appearing in

the listings, followed by a list, in alphanumeric se-

quence, of all part numbers appearing in the listings.

National stock numbers and part numbers are cross-

-referenced to each illustration figure and item

number appearance.

3. Explanation of Columns.

The following provides an explanation of columns

found in the tabular listings:

a. Illustration. This column is divided as follows:

(1) Figure number. Indicates the figure number

of the illustration in which the item is shown.

(2) Item number. The number used to identify

each item called out in the illustration.

b. Source, Maintenance, and Recoverability Codes

(SMR).