SECTION I TM 1-1270-476-23P
AVIATION UNIT AND INTERMEDIATE MAINTENANCE
REPAIR PARTS AND SPECIAL TOOLS LIST
Section I. INTRODUCTION
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
aviation unit and aviation intermediate maintenance of the Target Acquisition Designation Sight (TADS)
Assembly AN/ASQ-170. It authorizes the requisitioning and issue of spares and repair parts 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
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 item name sequence. Repair parts kits are listed separately in
their own functional group within Section II. Repair parts for repairable special tools are also listed in
this section. Items listed are shown on the associated illustration(s)/figures(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 pre-
baseline part number index lists all fielded parts and NSN of an earlier configuration and cross-
references to part number, NSN, figure, and item numbers of current configuration.
3. Explanation of Columns (Section II and III).
a. ITEM NO. (Column (1)). Indicates the number used to identify items called out in the illustration.
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 instructions, as shown in the following breakout: