SECTION I. INTRODUCTION - TM-11-5820-498-20P0005

SECTION I

INTRODUCTION

(2) Maintenance code. Maintenance codes are

1. Scope

assigned to indicate the levels of maintenance author-

This manual lists spares and repair parts; special tools;

ized to USE and REPAIR support items. The

special test, measurement, and diagnostic equipment

maintenance codes are entered in the third and fourth

(TMDE), and other special support equipment required

positions of the Uniform SMR Code format as follows:

for performance of organizational maintenance of the

(a) The maintenance code entered in the third

OA-3633/GRC and OA-3633A/GRC. It authorizes the

position will indicate the lowest maintenance level

requisitioning and issue of spares and repair parts as in-

authorized to remove, replace, and use the support

dicated by the source and maintenance codes.

item. The maintenance code entered in the third

position will indicate one of the following levels of

2. General

maintenance:

This Repair Parts and Special Tools List is divided into

Code

Application/Explanation

the following sections:

O-- Support item is removed, replaced, used at the

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

organizational level.

repair parts authorized for use in the performance of

(b) The maintenance code entered in the fourth

maintenance. The list also includes parts which must be

position indicates whether the item is to be repaired and

removed for replacement of the authorized parts. Parts

identifies the lowest maintenance level with the

lists are composed of functional groups in numeric

capability to perform complete repair (i.e., all author-

sequence, with the parts in each group listed in figure

ized maintenance functions). This position will contain

and item number sequence.

one of the following maintenance codes:

b. Section III. Special Tools List. Not applicable.

c. Section IV. National Stock Number and Part

Code

Application/Explanation

Number Index. A list, in National item identification

D-- The lowest maintenance level capable of com-

number (NIIN) sequence, of all National stock numbers

plete repair of the support item is the depot

(NSN) appearing in the listings, followed by a list, in

level.

alphameric sequence, of all part numbers appearing in

Z-- Nonreparable. No repair is authorized.

the listings. National stock numbers and part numbers

(3) Recoverability code. Recoverability codes are

are cross-referenced to each illustration figure and item

assigned to support items to indicate the disposition

number appearance.

action on unserviceable items. The recoverability code is

entered in the fifth position of the Uniform SMR Code

3. Explanation of Columns

format as follows:

a. Illustration. This column is divided as follows:

(1) Figure number. Indicates the figure number of

Recoverability

codes

Definition

the illustration on which the item is shown.

Z--

Nonreparable item. When unserviceable,

(2) Item number. The number used to identify

condemn and dispose at the level in-

item called out in the illustration.

dicated in position 3.

b. Source, Maintenance, and Recoverability (SMR)

D--

Reparable item. When beyond lower level

Codes.

repair capability, return to depot. Con-

(1) Source code. Source codes indictitate the man-

demnation and disposal not authorized

ner of acquiring support items for maintenance, repair,

below depot level.

or overhaul of end items. Source codes are entered in

c. National Stock Number. Indicates the National

the first and second positions of the Uniform SMR

stock number assigned to the item and will be used for

Code format as follows:

requisitioning purposes.

d. Federal Supply Code for Manufacturer (FSCM).

Definition

Code

The FSCM is a 5-digit numeric code listed in SB

PA-- item procured and stocked for anticipated or

708-41/42 which is used to identify the manufacturer,

known usage.

distributor, or Government agency, etc.

XD-- A support item that is not stocked. When

e. Part Number. Indicates the primary number used

required, item will be procured through

by the manufacturer (individual, company, firm, cor-

normal supply channels.

poration, or Government activity), which controls the

NOTE

design and characteristics of the item by means of its

Cannibalization or salvage may be used as a

engineering drawings, specifications, standards, and in-

source of supply for any items source coded

spection requirements to identify an item or range of

above except those coded XA and aircraft

items.

support items as restricted by AR 70(-42.