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 TM 55-4920-335-24P
4. How to Locate Repair Parts.
of each item, is the total quantity of items
a. When Federal Stock Number or Reference
authorized for the number of equipments
Number is Unknown:
supported. Subsequent appearances of the
same item will have the letters "REF" in
( 1 ) First. Find the illustration of the
assembly or subassembly to which the
the applicable allowance columns. Items
repair part belongs.
authorized for use as required, but not for
(2) Second. Identify the repair part on the
initial stockage are identified with an
illustration and note the illustration figure
asterisk (*) in the allowance column.
and item number of the repair part.
(2) The quantitative allowances for DS / GS
(3) Third. Using the repair parts listing find
levels of maintenance will represent initial
the figure and item number listed in the
stockage for a 30-day period for the
illustration column.
number of equipments supported. The
basis of issue for authorized special tools,
b. When Federal Stock Number or Reference
test and support equipment is the number
Number is Known:
of end items of equipment supported.
(1) First. Using the Index of Federal Stock
( 3 ) Determination of the total quantity of
Numbers and Reference Numbers, find
parts required for maintenance of more
the pertinent federal stock number or
than 100 of these equipments, can be
reference n u m b e r . This index is in
accomplished by converting the equip-
ascending federal stock number sequence
ment quantity to a decimal factor by
followed by a list of reference numbers in
placing a decimal point before the next to
ascending
alphanumerical
sequence,
l a s t digit of the number to indicate
cross-referenced to the illustration figure
hundredths, and multiplying the decimal
and item number.
factor by the parts quantity authorized in
(2) Second. Using the repair parts listing,
the 51-100 allowance column. Example:
find the figure and item number listed in
a l l o w a n c e for 51-100
authorized
the illustration column referenced in the
equipments is 40; for 150 equipments
Index of Federal Stock Numbers and
multiply 40 by 1.50 or 60 parts required.
Reference Numbers.
h. One Year Allowances for 100 Equipments
5. Federal Supply Code for Manufac-
Contingency Planning Purposes. When applicable,
turers.
this column indicates opposite the first appearance
o f each item the total quantity required for
distribution and contingency planning purposes.
The range of items indicates the total quantities of
all authorized items required to provide adequate
support of 100 equipments for 1 year.
i. Depot M a i n t e n a n c e Allowance Per 100
Equipments. This column indicates opposite the
first appearance of each item, the total quantity
authorized for depot maintenance of 100 equip-
ments. Subsequent appearances of the same item
will have the letters "REF" in the allowance
column. Items authorized for use as required, but
not for initial stockage are identified with an
asterisk (*) in the allowance column.
j. Illustration. This column is d i v i d e d as
follows:
( 1 ) Figure Number. Indicates t h e figure
number of the illustration in which the
item is shown. Appearances of the letters
"MS UP" in t h i s column indicates
maintenance supplies located in Section V.
( 2 ) Item Number. Indicates the callout
n u m b e r to reference the item in the
illustration.
v
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