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,
c. National Stock Number. Indicates the National
b. The illustrations in this manual are identical to
stock number assigned to the item and will be used
those published in TM 5-6675-250-34P. Only those
for requisitioning purposes.
parts assigned the third position SMR code "C" or "O"
d. Part Number. Indicates the primary number
are listed in the tabular listing, therefore, there may
used by the manufacturer which controls the design
be a break in the item number sequence. Only il-
and characteristics of the item by means of its
lustrations containing organizational authorized
engineering drawings, specification standards, and
items appear in this manual.
inspection requirements to identify an item or range
c. The following publications pertain to the Survey
Instrument and its components:
Operator's and Orga-
5. How to Locate Repair Parts.
e. Federal Supply Code for Manufacturer (FSCM).
a. When National Stock Number or Part Number
The FSCM is a five-digit numeric code listed in SB
708-42 which is used to identify the manufacturer,
(1) First. Using the table of contents, determine
distributor, or government agency, etc.
the functional group within which the repair part
f. Description. Indicates the Federal item name
belongs. This is necessary since illustrations are
and, if required, a minimum description to identify
prepared for functional groups, and listings are divid-
the item. Items that are included in kits and sets are
ed into the same groups.
listed below the name of the kit or set with the quan-
(2) Second. Find the illustration covering the
tity of each item in the kit or set indicated in the
functional group to which the repair part belongs.
quantity incorporated in unit column. When the part
(3) Third. Identify the repair part on the illustra-
to be used differs between serial numbers of the same
tion and note the illustration figure and item number
model, the effective serial numbers are shown as the
of the repair part.
last line of the description. In the Special Tools List,
(4) Fourth. Using the Repair Parts Listing, find
the initial basis of issue (BOI) appears as the last line
the figure item number noted on the illustration.
in the entry for each special tool, TMDE and support
b. When National Stock Number or Part Number
equipment. When density of equipments supported
exceeds density spread indicated in the basis of issue,
(1) First. Using the Index of National Stock
the total authorization is increased accordingly.
Numbers and Part Numbers, find the pertinent
g. Unit of Measure (U/M). Indicates the standard
National stock number or part number. This index is
of the basic quantity of the listed item as used in per-
in ascending NSN sequence followed by a list of part
forming the actual maintenance function. This
numbers in ascending alphanumeric sequence, cross-
measure is expressed by a two-character alphabetical
-referenced to the illustration figure number and item
abbreviation (e.g., ea, in, pr, etc.). When the unit of
measure differs from the unit of issue, the lowest unit
(2) Second. After finding the figure and item
of issue that will satisfy the required units of
number, locate the figure and item number in the
measure will be requisitioned.
repair parts list.
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 func-
tional group, subfunctional group, or an assembly. A
"V" appearing in this column in lieu of a quantity in-
dicates that no specific quantity is applicable (e.g.,
shims, spacers, etc.).
ASSY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .