Section I. INTRODUCTION - TM-11-5821-244-20P0005

TM 11-5821-244-20P

SECTION I

INTRODUCTION

b. Source, Maintenance, and Recoverability

1. Scope

(SMR) Codes.

This manual lists spares and repair parts;

(1) Source code. Source codes indicate the

special tools; special test, measurement, and

manner of acquiring support items for main-

diagnostic equipment (TMDE), and other special

tenance, repair, or overhaul of end items. Source

support equipment required for performance of

codes are entered in the first and second posi-

organizational maintenance of the Radio Set

tions of the Uniform SMR Code format as follows:

AN/ARC-54. It authorizes requisitioning and issue

of spares and repair parts as indicated by the

Code

Definition

source and maintenance codes.

PA -- Item procured and stocked for antici-

2. General

pated or known usage.

This Repair Parts and Special Tools List is divided

X B --Item included in both a d e p o t

into the foIlowing sections:

overhaul/repair kit and a mainte-

nance kit.

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

NOTE

and repair parts authorized for use in the perfor-

mance of maintenance, The list also includes

Cannibalization or salvage may be used

parts which must be removed for replacement of

. as a source of supply for any items

the authorized parts. Parts lists are composed of

source coded above except those

functional groups in numeric sequence, with the

coded XA and aircraft support items as

parts in each group listed in figure and item

restricted by AR 750-1.

number sequence.

b . S e c t i o n Ill. S p e c i a l T o o l s L i s t . N o t

(2) Maintenance code. Maintenance codes

applicable.

are assigned to indicate the levels of maintenance

authorized to USE and REPAIR support items. The

c. Section IV. National Stock Number and Part

maintenance codes are entered in the third and

Number Index, A list, in National item identifica-

fourth positions of the Uniform SMR Code format

tion number (NIIN) sequence, of all National stock

as follows:

numbers (NSN) appearing in the listings, followed

by a list, in alphameric sequence, of all part

(a) The maintenance code entered in the

numbers appearing in the listings. National stock

third position will indicate the lowest

numbers and part numbers are cross-referenced

maintenance level authorized to remove, replace,

t o each illustration figure and item number

and use the support item. The maintenance code

appearance.

entered in the third position will indicate one of

the following levels of maintenance:

3. Explanation of Columns

Code

Application/Explanation

a. Illustration.

This

column

divided

follows:

O -- Support item is removed, replaced,

used at the organizational level.

(1) F i g u r e n u m b e r . Indicates the figure

number of the illustration on which the item is

(b) The maintenance code entered in the

fourth position indicates whether the item is to be

shown.

repaired and identifies the lowest maintenance

(2) Itern number. The number used to iden-

level with the capability to perform complete

tify item called out in the illustration.

repair (i.e., all authorized maintenance functions).

This position will contain one of the following

maintenance codes: