Special Information - TM-9-1270-212-14-P0283

TM 9-1270-212-14&P

same as an NSN with "01" even though the

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

Federal Supply Class (FSC) and the last seven

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

digits are the same. "The NIIN that is published

special tool. special TMDE, and other special support

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

equipment. When density of equipments supported exceeds

supply has been assigned one unique NIIN and

density spread indicated in the basis of issue, the total

changing one digit of the NIIN will result in the

authorization is increased accordingly.

receipt of the wrong item.

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

e. Action change codes indicated in the left-hand margin

basic quantity of the listed item as used in performing the

of the listing page denote the following:

actual maintenance function. This measure is expressed by

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

N - Indicates an added item

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

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

C - indicates a change in data

units of measure will be requisitioned.

R Indicates a change in NSN only.

h. Quantity Incorporated in Unit. Indicates the

quantity of the item used in the breakout shown on the

B-5. How to Locate Repair Parts.

illustration figure, which is prepared for a functional group,

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

a. When National Stock Number or Part Number is

this column in lieu of a quantity indicates that no specific

Unknown:

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

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

B-4 Special Information.

functional group within which the item belongs. This is

necessary since illustrations are prepared for functional

a. Usable on codes are shown in the description column.

groups, and listings are divided into the same groups.

Uncoded items are applicable to all models. Identification

of the usable codes used in this publication are:

(2) Second. Find the illustration covering the

functional group to which the item belongs.

Code

Used on

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

Model XM128

note the illustration figure and item number of the item.

Model XMl36

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

figure and item number noted on the illustration.

b. Bulk materials required to manufacture items are

listed in the Bulk Material Group of this manual.

b. When National Stock Number or Part Number is

Known:

c. Detailed assembly instructions for items source coded

to be assembled are found in TM 9-1270-212-14&P.

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

Assembly components are listed immediately following the

and Part Numbers, find the pertinent National stock

item to be assembled.

number or part number. This index is in NIIN sequence

followed by a list of part numbers in `alphanumeric

d. National stock numbers (NSN's) omitted in this

sequence, cross-referenced to the illustration figure number

appendix were not available at the time of printing. These

and item number.

items will be requisitioned by their assigned part number.

Changes will be issued to the manual upon receipt of the

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

applicable NSN's.

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

B-6. Abbreviations.

NOTE

New NSN's now entering the Federal Supply

Abbreviations

Explanation

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

FIG.

Figure

for the country code identification. An NSN

HSS

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

Helmet sight subsystem

Item Identification Number (NIIN) is not the

NHA

Next higher assembly

B-4

Change 1