UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
REPAIR PARTS AND SPECIAL TOOLS LIST
This manual 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 direct support and general
support maintenance of the HET Tractor. It authorizes the requisitioning, issue, and disposition of spares, repair
parts and special tools as indicated by the Source, Maintenance, and Recoverability (SMR) codes.
This Repair Parts and Special Tools List (RPSTL) is divided into the following sections:
a. Section II. 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 materials are listed in NSN
b. Section III. Special Tools List. A list of special tools, special TMDE, and other special support
equipment authorized by this RPSTL 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 National stock numbers (NSNs) appearing in the listings, followed by a list in
alphanumeric sequence of all pat-t numbers appearing in the listings. NSNs and part numbers are
cross-referenced to each illustration figure and item number appearance.
a. Illustration (Column (1)). This column is divided as follows:
(1) ((a) FIG NO.) Figure Number. Indicates the figure number illustrating an exploded view of a functional
(2) ((b) ITEM NO.). 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 five-position
code containing supply/requisitioning information, maintenance category authorization criteria, and disposition
instructions, as shown in the following breakout:
How you get an item
Who can install
Who can do
disposition action on
replace or use
on the item
*Complete Repair: Maintenance capacity, capability, and authority to perform all the corrective maintenance tasks
of the Repair function in a use/user environment in order to restore serviceability to a failed item.