of specific reasons (i.e., precious metal content,
that no specific quantity is applicable (e.g., shims,
high dollar value, critical material or hazardous
Refer to appropriate manuals/
directives for specific instructions.
D-4. SPECIAL INFORMATION.
c. National Stock Number. Indicates the National
a. The USABLE ON CODE title appears in the
stock number assigned to the item and which will be
lower right corner of column (6), Description. Usable on
used for requisitioning.
codes are shown in the right-hand margin of the
d. Part Number. Indicates the primary number
description column. Uncoded items are applicable to all
used by the manufacturer (individual, company, firm,
models. Identification of the usable on codes used in
corporation, or Government activity), which controls the
this publication are:
design and characteristics of the item by means of its
engineering drawings, specifications, standards, and
inspection requirements to identify an item or range of
b. Detailed manufacturing instructions for items
source coded to be manufactured or fabricated are
When a stock-numbered item is
found in appendix G of this manual. Bulk materials
requisitioned, the item received may
required to manufacture items are listed in the Bulk
have a different part number than the
Material Group of this manual.
part being replaced.
c. Repair parts kits and gaskets sets appear as the
last entries in the repair parts listing for the figure in
e. Federal Supply Code for Manufacturer
which its parts are listed as repair parts.
(FSCM). The FSCM is a 5-digit numeric code listed in
SB 708-42 which is used to identify the manufacturer,
D-5. HOW TO LOCATE REPAIR PARTS.
distributor, or Government agency, etc.
f. Description. Indicates the Federal item name
a. When National Stock Number or Part Number is
and, if required, a minimum description to identify the
item. Items that are included in kits and sets are listed
below the name of the kit or set with the quantity of each
Using the table of contents,
item in the kit or set indicated in the quantity
determine the applicable functional group or subgroup
incorporated in unit column.
When density of
within which the item belongs. This is necessary since
equipments supported exceeds density spread indicated
illustrations are prepared for applicable functional groups
in the basis of issue, the total authorization is increased
or subgroups and listings are divided into the same
g. Unit of Measure (U/M). Indicates the standard
(2) Second. Find the illustration covering the
of the basic quantity of the listed item as used in
applicable functional group or subgroup to which the
performing the actual maintenance functions.
measure is expressed by a two-character alphabetical
(3) Third. Identify the item on the illustration
abbreviation (e.g., ea, in., pr, etc.). When the unit of
and note the illustration figure and item number of the
measure differs from the unit of issue, the lowest unit of
issue that will satisfy the required units of measure will
(4) Fourth. Using the Repair Parts Listing,
find the figure and item number noted on the illustration.
h. Quantity Incorporated in Unit. Indicates the
b. When National Stock Number or Part Number is
quantity of the item used in the breakout shown on the
illustration figure, which is prepared for a functional
(1) First. Using the Index of National Stock
group, subfunctional group, or an assembly. A "V"
Numbers and Part Numbers, find the
appearing in this column in lieu of a quantity indicates