REPAIR PARTS AND SPECIAL TOOLS LISTS
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 M172A1 Lowbed Semitrailer. It authorizes the requisitioning, issue, and disposition of
spares, repair parts, and special tools as indicated by the Source, Maintenance, and Recoverability (SMR) codes.
In addition to Section I, 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. The 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 materiels are listed in item name sequence. Repair parts
kits are listed separately in their own functional group within Section Il. Repair parts for reparable special tools are also
listed in this section. Items listed are shown on 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 the DESCRIPTION AND USABLE ON
CODE column] for the performance of maintenance.
c. Section IV. National Stock Number and Part Number Index. A list, in National Item identification Number
(NIIN) sequence, of all part numbers app e a r i n g i n t h e l i s t i n g , f o l l o w e d b y a l i s t i n a l p h a n u m e r i c
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, CAGE, and part numbers.
a. ITEM NO. [Column (1)]. Indicates the number used to identify items called out in the illustration.
b. SMR CODE [Column(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: