This manual lists 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/ MSC-64(V)1, 2, and 3. It authorizes the requisitioning and issue of spares and repair parts as indicated by the source
and maintenance 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 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
b. Section III. Special Tools List. Not applicable.
c. Section IV National Stock Number and Part Number Index. A list, in National item identification number (NIIN)
sequence, of all National stock numbers (NSN) appearing in the listings, 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.
3. Explanation of Columns
a. Illustration. This column is divided as follows:
(1) 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.
b. Source, Maintenance, and Recoverability (SMR) Codes.
(1) Source code. Source codes indicate the manner of acquiring support items for maintenance, repair, or
overhaul of end items. Source codes are entered in the first and second positions of the Uniform SMR Code format as
Item procured and stocked for anticipated or known usage.
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
or additional initial issues or outfittings. Not subject to automatic replenishment.
Support equipment procured and stocked for initial issue or outfitting to specified maintenance repair activities.
Support equipment which will not be stocked but which will be centrally procured on demand.
Item is not procured or stocked because the requirements for the item will result in the replacement of the next
Item is not procured or stocked. If not available through salvage, requisition.
A support item that is not stocked. When required, item will be procured through normal supply channels.
Cannibalization or salvage may be used as a source of supply for any items source coded above except those
coded XA and aircraft support items as restricted by AR 750-1.
(2) Maintenance code. Maintenance codes are assigned to indicate the levels of maintenance authorized to USE
and REPAIR support items. The maintenance codes are entered in the third and fourth positions of the Uniform SMR
Code format as follows:
(a) The maintenance code entered in the third position will indicate the lowest maintenance level authorized to
remove, replace, and use the support item. The maintenance code entered in the third position will
indicate one of the following levels of maintenance:
Support item is removed, replaced, used at the organizational level.
Support item is removed, replaced, used at the general support level.