umn indicates the Federal stock number for the item.
c. Description, Colunm (3). This column indicates
the Federal item name and any additional descrip-
tion of the item required. A part number or other
reference number is followed by the applicable five-
digit Federal supply code for manufacturers in
parentheses. Material required for manufacture or
fabrication is identified.
d. Unit of Issue, Column (4). This column indicates
the unit used as basis for issue, e.g., ea, pr, ft, yd, etc.
e. Quantity Incorporated in Unit Pack, Column (5).
This column indicates the actual quantity contained
in the unit pack.
f. Quantity Incorporated in Unit, Column (6). This
column indicates the quantity of the item used in
the functional group.
g. Thirty-Day DS/GS Maintenance Allowances,
Column (7) and (8).
(1) The allowance columns are divided into three
subcolumns. Indicated in each subcolumn is the
quantity of items authorized for the number of
equipments supported. Items authorized for use as
required but not for initial stockage are identified
with an asterisk in the allowance column.
(2) The quantitative
allowances for DS/GS
levels of maintenance will represent initial stockage
for a 30-day period for the number of equipments
supported.
(3) Determination of the total quantity of parts
required for maintenance of more than 100 of these
equipments can be accomplished by converting the
equipment quantity to a decimal factor by placing a
decimal point before the next to last digit of the num-
ber to indicate hundredths, and multiplying the
decimal factor by the parts quantity authorized in
the 51-100 allowance column. Example, authorized
allowance for 51-100 equipments is 40; for 150 equip-
ments multiply 40 by 1.50 or 60 parts required.
h. One- Year Allowances Per 100 Equipments/
Contingency Planning Purposes. Column (9). This
column indicates the quantity required for distribu-
tion and contingency planning purposes. The range
of items indicates total quantities of all authorized
items required to provide for adequate support of 100
equipments for one year.
i. Depot Maintenance Allowance Per 100 Equip-
ments, Column (10). This column indicates the quan-
tity authorized for depot maintenance of 100 equip-
ments. Items authorized for use but not for initial
stockage are identified with an asterisk in the
allowance column.
j. Illustration Column (11).
(1) Figure Number, Column (11)(a). Indicates
the figure number of the illustration in which the
item is shown.
(2) Item Number, Column (11)(b). Indicates
the callout number used to reference the item in
the illustration.
4. Special Information
a. Identification of the usable on codes of this
publication are:
Code
Manufacturer
A
Theodolite Model T-2-56-M-MIL
B
Theodolite Model T-2-56-C-MIL
C
Theodolite Model T-2-56-M-MIL, Reference and Theodolite
Model T-2-56-C-IIIL, Reference, when listed parts are
replaced or added in standard models.
Repair parts not symbolized are applicable to all
models covered in this manual.
b. Repair parts mortality has been based on 1,000
hours of operation per year.
c. Parts which require manufacture or assembly
at a category higher than that authorized for in-
stallation will indicate in the source column the
higher category.
d. The following publications pertain to the
theodolite and its components:
TM 5-6675-20.5-12
Operator,
organizational
maintenance manual.
TM 5-6675-205-35
Field and depot mainte-
nance manual.
TM 5-6675-205-20P Organizational mainte-
nance repair parts and
special tool lists.
5. How to Locate Repair Parts
a. When Federal stock number or reference num-
ber is unknown:
( 1 ) First. Using the table of contents, determine
the functional group within which the repair part
belongs.
(2) Second. Find the illustration covering the
functional group to which the repair part belongs.
(3) Third. Identify the repair part on the illustra-
tion, and note the illustration figure and item num-
ber of the repair part.
(4) Fourth. Using the Repair Parts Listing, find
the functional group to which the repair part belongs
and locate the illustration figure and item number
noted on the illustration.
b. When Federal stock number or reference num-
ber is know-n:
(1) First. Using the Index of Federal Stock Num-
bers and Reference Numbers, find the pertinent
Federal stock number or reference number. This
index is in ascending alpha-numeric sequence cross-
-referenced to an index number.
(2) Second. Using the Repair Part Listing, find
the index number referenced in the Index of Federal
Stock Numbers and Reference Numbers.
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