Special Information. - TM-9-4931-363-14-P0138

TM 9-4931-363-14&P

description. In the Special Tools List, the initial basis of

supply has been assigned one unique NIIN and

issue (BOI) appears as the last line in the entry for each

changing one digit of the NIIN will result in the

special tool, special TMDE, and other special support

receipt of the wrong item.

equipment. When density of equipments supported exceeds

d. Action change codes indicated in the left-hand

density spread indicated in the basis of issue, the total

margin of the listing page denote the following:

authorization is increased accordingly.

N - Indicates an added item

g, Unit of Measure (U/M). Indicates the standard of the

basic quantity of the listed item as used in performing the

C - Indicates a change in data

actual maintenance function. This measure is expressed by

a two-character alphabetical abbreviation (e.g., ea, in., pr,

R - Indicates a change in NSN only

etc.). When the unit of measure differs from the unit of

issue, the lowest unit of issue that will satisfy the required

B-5. How to Locate Repair Parts.

units of measure will be requisitioned.

a. When National Stock Number or Part Number is

h. Quantity Incorporated in Unit. Indicates the

Unknown:

quantity of the item used in the breakout shown on the

illustration figure, which is prepared for a functional group,

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

subfunctional group, or an assembly. A "V" appearing in

functional group within which the item belongs. This is

this column in lieu of a quantity indicates that no specific

necessary since illustrations are prepared for functional

quantity is applicable (e.g., shims, spacers, etc.).

groups, and listings are divided into the same groups.

( 2 ) Second. Find the illustration covering the

B-4. Special Information.

functional group to which the item belongs.

a. Bulk materials required to manufacture items are

(3) Third. Identify the item on the illustration and

listed in the Bulk Material Group of this manual.

note the illustration figure and item number of the item.

b. Detailed assembly instructions for items source coded

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

t o be assembled are found in TM 9-4931-363-14&P.

figure and item number noted on the illustration.

Assembly components are listed immediately following the

item to be assembled.

b. When National Stock Number or Part Number is

Known:

c. National stock numbers (NSN'S) omitted in this

(1) First. Using the Index of National Stock Numbers

appendix were not available at the time of printing. These

a n d Part Numbers, find the pertinent National stock

items will be requisitioned by their resigned part number.

number or part number. This index is in NIIN sequence

Changes will be issued to the manual upon receipt of the

f o l l o w e d by a list of part numbers in alphanumeric

applicable NSN'S by ARMCOM.

sequence, cross-referenced to the illustration figure number

and item number.

NOTE

(2) Second. After finding the figure and item number,

New NSN'S now entering the Federal Supply

locate the figure and item number in the repair parts list.

system are carrying an "01" rather than "00"

for the country code identification. An NSN

B-6. Abbreviations.

with "00" as the first two digits of the National

Item Identification Number (NIIN) is not the

Abbreviations

Explanation

same as an NSN with "01" even though the

FIG.

Federal Supply Class (FSC) and the last seven

Figure

digits are the same. "The NIIN that is published

HSS

Helmet sight subsystem

NHA

is the NIIN that should be used." An item of

Next higher assembly

B-4