How to Locate Repair Parts - TM-5-4320-254-140076

d. Action change codes indicated in the left hand margin of the listing page denote the following:

N - Indicates an added item not included in previous publications.

C - Indicates a change in data.

F - Indicates a change in FSN only.

D-5.

How to Locate Repair Parts

a. When Federal stock number or reference number is unknown:

(1) First. Using the table of contents determine the functional group, functional subgroup, or assembly group,

i.e., engine, engine assembly, transmission, transmission assembly, within which the repair parts belong. This is

necessary since illustrations are prepared for functional groups, functional sub-groups, or assembly groups, and

listings are divided into the same groups.

(2) Second. Find the illustration covering the functional group, functional subgroup, or assembly group to which

the repair part belongs.

(3) Third. Identify the repair part on the illustration and note the illustration figure and item number of the repair

part.

(4) Fourth. Using the Repair Parts Listing, find the functional group, functional subgroup, or assembly group to

which the repair part belongs and locate the illustration figure and item number noted on the illustration.

b. When Federal stock number or reference number is known:

(1) First. Using the Index of Federal Stock Numbers and Reference Numbers find the pertinent Federal Stock

Number or reference number. This index is in ascending FSN sequence followed by a list of reference numbers in

alpha-numeric sequence, cross-referenced to the illustration figure number and item number.

(2) Second. Using the Repair Part Listing, find the functional group, functional subgroup, or assembly group of

the repair part and the illustration figure number and item number referenced in the Index of Federal Stock Numbers

and Reference numbers.

D-6.

Abbreviations

Abbreviations

Explanation

each

left hand

right hand

thk

thick

inch(es)

thd

thread(s)

mtg

mounting

D-6