Section I INTRODUCTION
Scope. This manual lists spares and repair parts that are required for maintenance
of the Digital Multimeter,
Tektronix Model DM501A. It authorizes requisitioning and issue of spares and repair parts as indicated by the source and
maintenance codes .
General. This repair parts and special tools list (RPSTL) is divided into the following sections:
Section I. Introduction.
Section II. Repair Parts List. A list of spares and repair parts authorized 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 numeric sequence, with the parts in each group listed in figure and item number
Bulk materials are listed in National Stock Number (NSN) sequence.
Section III. NSN and Part Number be coded Index. A list, in National Item Identification Number (NIIN)
sequence, of all NSN's appearing in the listings, followed equipment, procured for initial by a list in alphameric sequence of
all part numbers appearing in the listings. part numbers appearing in the listings. NSN's and part numbers are cross-
referenced to each illustration figure and item number appearance.
Explanation of Columns
Illustration. This column is divided as follows:
Figure Number. Indicates the figure number of the illustration on which the item is shown.
(2) Item Number. The number used to identify item called out in the illustration.
Source, Maintenance, and Recoverability (SMR) Codes.
Source Code. Source codes indicate the manner of acquiring support items for maintenance,
repair, overhaul of end items. Source codes are entered in the first and second positions of the Uniform SMR
Code format as follows
Item procured and stocked for anticipated or known usage.
Item procured and stocked for insurance purpose because essentially dictates that a minimum
quantity be available in the supply system.
Item procured and stocked and which otherwise would be coded PA except that it is deteriorative in nature.
Support item, excluding support equipment, procured for initial issue or outfitting and stocked only for
subsequent of additional initial issues or outfitting. Not subject to automatic replenishment.
Support equipment procured and stocked for initial issue or outfitting to specified maintenance repair
Support equipment which will not be stocked but which will be centrally procured on demand.