TM 55-6605-261-25P
TM 55-6605-261-15
Operator, Organizational, DS,
the applicable allowance columns. Items authorized for
GS and Depot Maintenance
use as required but not for initial stockage are identified
Manual
with an asterisk, in the allowance column.
(2) The quantitative allowances for DS/GS
5. How to Locate Repair Parts
levels of maintenance will represent initial stockage for
a. When a Federal Stock Number o0r Reference is
a 30-day period for the number of equipments
supported.
Unknown:
(1) First. Using the table of contents determine
(3) Determination of the total quantity of parts
required for maintenance of more than 100 of these
the assembly group within which the repair part belongs.
equipments can be accomplished by converting the
This is necessary since illustrations are prepared for
equipment quantity to a decimal factor by placing a
assembly groups, and listings are divided into the same
decimal point before the next to last digit of the number
groups.
(2) Second. Find the illustration covering the
to indicate hundredths, and multiplying the decimal
factor by the parts quantity authorized in the 51-100
assembly group to which the repair part belongs.
(3) Third.
allowance column. Example, authorized allowance for
Identify the repair part on the
51-100 equipments is 40; for 150 equipments multiply
illustration and note the illustration figure and item
40 by 1.50 or0 60 parts required.
number of the repair part.
h. One-Year
Allowance
Per
100
(4) Fourth. Using the Repair Parts Listing, find
Equipments/Contingency Planning Purposes.
This
the assembly group to which the repair part belongs and
column indicates opposite the first appearance of each
locate the illustration figure and item number noted on
item the total quantity required for distribution and
the illustration.
contingency
planning
purposes.
Subsequent
b. When Federal Stock Number or Reference
appearances of the same item will have the letters
Number is Known:
(1) First. Using the Index of Federal Stock
"REF" in the allowance column. The range of items
indicates total quantities of all authorized items required
Numbers and Reference Numbers find the pertinent
to provide for adequate support of 100 equipments for
Federal stock number or reference number. This index
one year.
is in ascending FSN sequence, followed by a list of
i. Depot Maintenance Allowance Per 100
reference numbers in alphanumeric sequence, cross-
Equipments. Indicates opposite the first appearance of
referenced to the illustration figure number and item
each item the total quantity authorized for depot
number.
(2) Second. Using the Repair Parts Listing, find
maintenance of 100 equipments.
Subsequent
appearances of the same item will have the letters
the assembly group of the repair part and the illustration
"REF" in the allowance column. Items authorized for
figure number and item number referenced in the Index
use as required but not for initial stockage are identified
of Federal Stock Numbers and Reference Numbers.
with an asterisk in the allowance column.
j. Illustration.
6. Abbreviations
(1) Figure Number. Indicates the figure
assy ....................................
assembly
number of the illustration in which the item is shown.
dia ......................................
diameter
(2) Item Number. Indicates, the callout number
ea .......................................
each
used to reference the item in the illustration.
hd .......................................
head
in. .......................................
inch
4. Special Information
Ig ........................................
long (length)
a. Repair parts mortality has been based on 2080
lh ........................................
left hand
hours operation per year.
mtg .....................................
mounting
b. Parts which require manufacture or assembly at
No.......................................
number
rh ........................................
right hand
a category higher than that authorized for installation will
thd ......................................
thread(s) (ed)
indicate in the source column the higher category.
c. The following publication pertains to the
thk ......................................
thick(ness)
w.........................................
watt (s)
compass and its components:
v .........................................
volt(s)
7.
Federal Supply Codes for Manufacturers
Code
Manufacturer
03956...............
Sperry Marine Systems Divisions of
Sperry Rand Corp.
v
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