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 AN/GRC-142B. 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 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 list are composed of functional groups in ascending numeric sequence, with the parts in each group
listed in ascending item number sequence. Figure numbers are listed directly beneath the group header.
b. Section III. Special Tools List. Not applicable.
c. Section IV. Illustrations. Located at the end of section II.
d. Section V. National Stock Number and Part Number 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 alphameric
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.
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,
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 in-
struction, as shown in the following breakout:
How you get an item.
action on an
Who can do
who can install,
replace or use
on the item.
Complete repair Maintenance capacity, capability, and authority to perform all cor-
rective maintenance tasks of the "Repair" function in a use/user environment in order
to restore serviceability to a failed item.
(1) Source code. The source code tells you how to get an item needed for maintenance, repair, or overhaul
of an end item/equipment. Explanation of source codes follows: