Special Information - TM-5-4120-268-20P0006

TM 5-4120-248-20P

(3) To determine allowances when supporting

and only these parts are authorized for requisitioning

more than 100 of these equipment: First, divide the

from this manual.

number of equipment supported by 100 by moving the

decimal two spaces left; second, multiply the result by

5. How to Locate Repair Parts

the quantity in the 51-100 density column. Example;

a. When Federal Stock Number or Reference

authorized allowance for 51-100 equipment is 40; for 150

Number is Unknown:

equipment, multiply 40 by 1.50 or 60 parts authorized.

(1) First. Using the table of contents, determine

(4) Subsequent changes to allowances will be

the assembly group within which the repair part belongs.

limited as follows: No change in the range of .items is

This is necessary since illustrations are prepared for

authorized. If additional items are considered necessary,

assembly groups and listings are divided into the same

recommendation should be forwarded to U. S. Army

groups.

Mobility Equipment Command for exception or revision

(2) Second. Find the illustration covering the

to the allowance list. Revisions to the range of items

assembly group to which the repair part belongs.

authorized will be made by the U. S. Army Mobility

(3) Third.

Identify the repair part on the

Equipment Command based upon engineering

illustration and note the illustration figure and item

experience, demand data, or TAERS information.

number of the repair part.

g. Illustration. This column is divided as follows:

(4) Fourth. Using the Repair Part Listing, find the

(1) Figure number. Indicates, the figure number of

assembly to which the repair part belongs and locate the

the illustration in which the item is shown.

illustration figure and item number noted on the

(2) Item number. Indicates the callout number

illustration.

used to reference the item in the illustration.

b. When the Federal Stock Number or Reference

Number is Known:

4. Special Information

(1) First. Using the Index of Federal Stock

a. Identifications of the usable on codes included in

Numbers and Reference Numbers find the pertinent

the description columns of this publication are:

Federal stock number or reference number'. This index

(Applicable only when identifying parts to particular serial

is in ascending FSN sequence followed by a list of

number range, or model).

reference numbers in alpha-numeric sequence, cross-

Code

Used on

referenced to the illustration figure number and item

A ................................ Model MAC 6V40 3402

number.

B ................................ Model MAC 4V40-340-3

(2) Second. Using the Repair Part Listing, find

b. Repair parts mortality has been based on 7200

the assembly group of the repair part and the illustration

hours of operation per year.

figure number and item number referenced in the Index

a. Parts which require manufacture or assembly at a

of Federal Stock Numbers and Reference Numbers.

category higher than that authorized for installation will

c. When the Federal Stock Number or Reference

indicate in the source column the higher category.

Number is Known and the Repair Part is not Illustrated.

d. The following publication pertains to the Air

(1) First. Using the Index of Federal Stock

Conditioners and their components.

Numbers and Reference Numbers find the pertinent

TM 5-4120-268-15

Operator, Organizational, DS,

Federal stock number or reference number in the section

GS, and Depot Maintenance

titled "Items Not Illustrated" and note the group number.

Manual

This section of the index is in ascending FSN sequence

e. The illustrations in this manual are identical to the

followed by a list of reference numbers in alpha-numeric

applicable illustrations published in the -35P, Direct and

sequence cross-referenced to assembly group number.

General Support and Depot Maintenance Repair Parts

(2) Seconds.

Using the Table of Contents,

and Special Tools List manual, and the figure numbers

locate the assembly group number and page number.

are the same as appear in that manual. The -35P

(3) Third. Using the applicable group number

illustrations are given for a better understanding of the

and page number locate the pertinent

parts relationship, however, only those parts assigned

maintenance code "O" are listed in the tabular portion