c. National Stock Number. Indicates the National
Stock Number assigned to the item and will be used for
d. Part Number. Indicates the primary number
used by the manufacturer which controls the design and
characteristics of the item by means of its engineering
requirements to identify an item or range of items.
When a stock numbered item is
requisitioned, the repair part received
may have a different part number than
the part being replaced.
e. Federal Supply Code for Manufacturer
(FSCM). The FSCM is a 5-digit numeric code listed in SB
708-42 which is used to identify the manufacturer,
distributor, or Government agency, etc.
f. Description. Indicates the Federal item name
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
item in the kit or set indicated in the quantity incorporated
in unit column. When the part to be used differs between
serial numbers of the same model, the effective serial
numbers are shown as the last line of the description. In
the Special Tools List, the initial basis of issue (BOI)
appears as the last line in the entry for each special tool,
TMDE, and support equipment. When density of
equipments supported exceeds density spread indicated
in the basis of issue, the total authorization is increased
g. Unit of Measure (U/M). Indicates the standard
of the basic quantity of the listed items as used in
performing the actual maintenance function. This
measure is expressed by a two-character alphabetical
abbreviation (e. g. , ea, in, pr, etc. ). When the unit of
measure differs from the unit of issue, the lowest unit of
issue that will satisfy the required units of measure will be
h. Quantity Incorporated in Unit. Indicates the
quantity of the item used in the breakout shown on the
illustration figure, which is prepared for a functional group,
subfunctional group, or an assembly. A "V" appearing in
this column in lieu of a quantity indicates that no specific
quantity is applicable, (e. g. , shims, spacers, etc. ).
4. Special Information.
a. Repair parts kits and gasket sets appear as the
last entries in the repair parts listing for the figure in which
its parts are listed as repair parts or are listed at the end
of the repair parts listing for the last figure containing
parts of the kit.
b. The following publications pertain to power plant
and its components.
Operator and Organizational
Direct Support and General
Support Maintenance Manual
Depot Maintenance Work
Direct and General Support
Maintenance Repair Parts and
Special Tools List
5. How to Locate Repair Parts.
a. When National Stock Number or Part Number is
(1) First. Using the table of contents,
determine the functional group within which the repair part
belongs. This is necessary since illustrations are
prepared for functional groups, and listings are divided
into the same groups.
(2) Second. Find the illustration covering the
functional group to which the repair part belongs.
(3) Third. Identify the repair part on the
illustration and note the illustration figure and item
number of the repair part.
(4) Fourth. Using the repair Parts Listing, find
the figure and item number noted on the illustration.
b. When National Stock Number or Part Number is
(1) First. Using the Index of National Stock
Numbers and Part Numbers, find the pertinent National
stock number or part number. This index is in ascending
NIIN sequence followed by a list of part numbers in
ascending alphanumeric sequence, cross-referenced to
the illustration figure number and item number.
(2) Second. After finding the figure and item
number, locate the figure and item number in the repair