(a) The maintenance code entered in the third position
will indicate the lowest maintenance level authorized to
This manual lists spares and repair parts; Special Tools
remove, replace, and use the support item.
;special test, measurement, and diagnostic equipment
maintenance code entered in the third poison will
(TMDE), and other special support equipment required
indicate one of the following levels of maintenance:
for performance of direct support and general support
maintenance of the 8558B (HP). It authorizes the
H - Support item is removed, replaced, used at the
requisitioning and issue of spares and repair parts as
general support level.
indicated by the source and maintenance codes.
D - Support items that are removed, replaced, used
atdepot, mobile depot, specialized repair activity only.
This Repair Parts and Special Tools List is divided into
(b) The maintenance code entered in the fourth position
the following sections:
indicates whether the item is to be repaired and identifies
a. Section II. Repair Parts List. A list of spares
the lowest maintenance level with the capability to
and repair parts authorized for use in the performance of
perform complete repair (i.e., all authorized maintenance
maintenance. The list also includes parts which must be
functions). This position will contain one of the following
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
D - The lowest maintenance level capable of complete
and item number sequence.
repair of the support is the depot level.
b. Section III. Special Tools List. Not applicable.
Z - Nonreparable. No repair is authorized.
c. Section IV. National Stock Number and Part
(3) Recoverability code.
Recoverability codes are
Number Index. A list, in National item identification
assigned to support items to indicate the disposition
number (NIIN) sequence, of all National stock numbers
action on serviceable items. The recoverability code is
(NSN) appearing in the listings, followed by a list, in
entered in the fifth position of the Uniform SMR Code
alphameric sequence, of all part numbers appearing in
format as follows:
the listings. National stock numbers and part numbers-
are cross-referenced to each illustration figur3 ;and item
Z - Nonreparable item. When unserviceable, condemn
Explanation of Columns
and dispose at the level indicated in position 3.
a. Illustration. This column is divided as follows:
D - Reparable item. When beyond lower level repair
(1) Figure Number. Indicates the figure number of the
capability, return to depot. Condemnation and
illustration on which the item is shown.
disposal not authorized below depot level.
(2) Item Number. The number used to identify item
A - Item requires special handling or condemnation
called out in the illustration.
procedures because of specific reasons (i.e., precious
Source, Maintenance, and Recoverability
metal content, high dollar value, critical material or
(1) Source code. Source codes indicate the manner of
manuals/directives for specific instructions.
acquiring support items for maintenance, repair, or
c. National Stock Number. Indicates the National stock
overhaul of end items. Source codes are entered in the
number assigned to the item and will be used for
first and second positions of the Uniform SMR Code
format as follows:
d. Federal Supply Code for Manufacturer (FSCM). The
FSCM is a 5-digit numeric code listed in SB 708-41/42
PA - Item procured and stocked for anticipated or
which is used to identify the manufacturer, distributor, or
Government agency, etc.
e. Part Number. Indicates the primary number used by
Cannibalization or salvage may be used as a
the manufacturer (individual, company, firm, cor-
source of supply for any items source coded
poration, or Government activity), which controls the
above except those coded XA and aircraft
design and characteristics of the item by m,'eans of its
support items as restricted by AR 750-1.
engineering drawings, specifications, standards, and
(2) Maintenance code. Maintenance codes are assigned
inspection requirements to identify an item or range of
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
When a stock numbered item is requisitioned,
SMR Code format as follows:
the repair part received may have a different
part number than the part being