Code
Explanation
g. One-Year
Allowances
per
100
U-
Repair parts specifically selected for salvage by
Equipments/Contingency Planning Purposes, Column 8.
reclamation units because of precious metal
This column indicates opposite the first appearance of
content, critical materials, highdollar value
each item the total quantity required for distribution and
reusable casings or castings.
contingency planning purposes. The range of items
S-
Repair parts and assemblies which are
indicates total quantities of all authorized items required
economically repairable at DSU and GSU
to provide for adequate support of 100 equipments for
activities and normally are furnished on an
one year.
exchange basis.
When determined to be
h. Depot Maintenance Allowance Per 100
uneconomically repairable by DSU and GSU
Equipments, Column 9. This column indicates opposite
activities, they will be returned to the depot for
the first appearance of each item, the total quantity
evaluation and analysis prior to final disposition.
authorized for depot maintenance of 100 equipments.
b. Federal Stock Number, Column 2. This column
Subsequent appearances of the same item will have the
indicates the Federal stock number assigned to the item
letters "REF" in the allowance column. Items authorized
and will be used for requisitioning purposes.
for use but not for initial stockage are identified with an
d. Unit of Measure (U/M), Column 4. A two-
asterisk in the allowance column.
character alphabetic abbreviation indicating the amount
i. Illustration, Column 10. This column is divided
or quantity of the item upon which the allowances are
as follows:
based, e.g., ft, ea, pr, etc.
(1) Figure number column 10a indicates the
e. Quantity Incorporated in Unit, Column 5. This
figure number of the illustration in which the item is
column indicates the quantity of the item used in the
shown.
functional group or the assembly group.
(2) Item number column 10b indicates the
f. 30-Day
DS/GS
Maintenance
Allowance,
callout number used to reference the item in the
Columns 6 and 7.
illustration.
NOTE.
Allowances in GS column are for GS
4. Special Information
maintenance only.
a. Parts which require manufacture or assembly at
(1) The allowance columns are divided into
a category higher than that authorized for installation will
three subcolumns.
Indicated in each subcolumn,
indicate in the source column the higher category.
opposite the first appearance of each item, is the total
b. Action change codes indicated in the left-hand
quantity of items authorized for the number of
margin of the listing page denote the following:
equipments supported. Subsequent appearances of the
N-Indicates an added item not included in
same item will have the letters "REF" in the applicable
previous publication.
allowances column.
Items authorized for use as
C-Indicates a change in data.
required but not for initial stockage are identified with an
F-Indicates a change in FSN only.
asterisk in the allowance column.
c. The following publications pertain to the Filter
(2) The quantitative allowances for DS/GS
Unit, Gas Particulate, M7A1
levels of maintenance will represent initial stockage for
TM 3-4240-201-12 ....................Operator and
a 30-day period for the number of equipments
Organizational
supported.
Maintenance
(3) Determination of the total quantity of parts
Manual
required for maintenance of more than 100 of these
TM 3-4240-201-20P .................Organizational
equipments can be accomplished by converting the
Maintenance
equipment quantity to a decimal factor by placing a
Repair Parts and
decimal point before the next to last digit of the number
Special Tool Lists
to indicate hundredths, and multiplying the decimal
TM 3-4240-201-35 ....................Direct Support,
factor by the parts quantity authorized in the 51-100
General Support,
allowance column. Example, authorized allowance for
and Depot
51-100 equipments is 40; for 150 equipments multiply
Maintenance
40 by 1.50 or 60 parts required.
Manual
3
