SPECIAL INFORMATION. - TM-55-4920-201-140163

TM 55-4920-201-14

(2) Usable on code. Not applicable.

d. Unit of Measure (U/M), Column 4. A two-character alphabetical abbreviation indicating the

amount or quantity of the item upon which the allowances are based (e.g., FT, EA, PR).

e. Quantity Incorporated in Unit, Column 5. Indicates quantities required for one assembly only,

including instances when similar assemblies are broken down together. A "V" appearing in this

column in lieu of a quantity indicates that a definite quantity cannot be indicated (e.g., shims, spacers).

f. Thirty-day DS/GS Maintenance Allowance, Column 6.

(1) The allowance column is divided into three subcolumns. Indicated in each subcolumn is the

total quantity of items authorized for the number of equipment supported. Items identified with an

asterisk (*) in this column will be requisitioned initially on an "as required" basis for the mainte-

nance mission at DS/GS levels. Requirements for repair parts stockage and for distribution to support

units will be based on demand and determined in accordance with AR 711-16/AR 710-2.

(2) 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 number to indicate hundredths, and multi-

plying 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 equipments, multiply 40 by 1.50, or 60 parts

required

(3) The basis of issue for authorized special tools, test and support equipment is the number of

end items of equipment supported.

g. One-year Allowance per 100 Equipments/Contingency Planning Purposes, Column 7. Not

applicable.

h. Depot Maintenance Allowance per 100 Equipments, Column 8. Not applicable.

i. Illustration, Column 9. illustrations appear in the narrative portion of this manual. This column

is divided as follows:

(1) Figure number, column 9a. Indicates the figure number of the illustration in which the item is

shown.

(2) Item number, column 9b. Indicates the callout number to reference the item in the illustration.

C-4. SPECIAL INFORMATION.

Action codes indicated in the left-hand margin of the listing page denote the following:

N - Indicates an added item.

C - Indicates a change in data.

R - Indicates a change in FSN only.

C-5. HOW TO LOCATE REPAIR PARTS.

a. When Federal Stock Number or Reference Number is Unknown:

(1) First. Find the exploded view illustration of the assembly or subassembly to which the repair

part belongs.

(2) Second. Identify the repair part on the illustration and note the illustration figure and item

number of the repair part.

(3) Third. Using the repair parts listing, find the figure and item number listed in the illustra-

tion column.

b. When Federal Stock Number or Reference Number is Known:

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