Section I. INTRODUCTION - TM-9-4120-401-24P0006

TM 9-4120-401-24P

UNIT, DIRECT SUPPORT AND GENERAL SUPPORT

MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST

Section I. INTRODUCTION

SCOPE. This RPSTL lists and authorizes spares and repair parts; special tools; special test, measurement,

and diagnostic equipment (TMDE); and other special support equipment required for performance of unit, direct

support and general support maintenance of the Air Conditioner, Horizontal, Compact. It authorizes the requisition-

ing, issue, and disposition of spares, repair parts and special tools as indicated by the source, maintenance and

recoverability (SMR) codes.

GENERAL. In addition to this section, Introduction, this Repair Parts and Special Tools List is divided into

the following sections:

a. Section Il. Repair Parts List. A list of spares and repair parts authorized by this RPSTL for use in the

performance of maintenance. This list also includes parts which must be removed for replacement of the authorized

parts. Parts lists are composed of functional groups in ascending alphanumeric sequence, with the parts in each

group listed in ascending figure and item number sequence. Bulk materials are listed in item name sequence.

Items are shown in the associated illustration(s)/figure(s).

b. Section III. Special Tools List. A list of special tools, special TMDE, and other special support equipment

authorized by this RPSTL (as indicated by Basis of Issue (BOI) information in DESCRIPTION AND USABLE ON

CODE column) for the performance of maintenance.

c. Section IV. Cross-Reference Index. A list, in National Item Identification Number (NIIN) sequence, of

all National stock numbered items appearing in the listing, followed by a list in alphanumeric sequence 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. The figure and item number index lists figure and item numbers

in alphanumeric sequence and cross references NSN, CAGEC and part number.

EXPLANATION OF COLUMNS (SECTIONS II AND III).

a. ITEM NO. (Column (1)). Indicates the number used to identify items called out in the illustration.

b. SMR Code (CoIumn (2)). The Source, Maintenance, and Recoverability (SMR) code is a 5-position code

containing supply/requisitioning information, maintenance category authorization criteria, and disposition

instruction, as shown in the following breakout:

Maintenance Code

Source Code

Recoverability Code

How you get

3rd position

4th position

Who determines

Who can install

an item

Who can do

disposition action

replace or use the

complete repair*

on an

item

on the item

unserviceable item

l Complete Repair: Maintenance capacity, capability, and authority to perform all corrective maintenance

tasks of the "Repair" function in a use/user environment in order to restore serviceability to a failed item.