Abbreviations and Symbols

All

Example 2:

If the number of

erations are listed in this column.

dimensions listed are in inches unless oth-

equipments supported is 89, and

erwise specified. For further identifica-

the allowance factor for 100

equipments is 3.4, the follow-

or manufac-

tion, the materiel

agency

ing computation would be made:

turer's part number is parenthetically

listed at the end of each nomenclature.

Unit of Issue.

The Unit of Issue

column lists the actual unit of issue for

In this instance, the result

each item (ea, ft, bulk, etc.).

is rounded to the next lower

whole number since the frac-

Quantity Incorporated in Unit. The

tional value is less than 0.5

Quantity Incorporated in Unit column in-

and the echelon would be au-

dicates the number of these parts required

thorized a quantity of 3.

for the particular use indicated.

How To Find Parts

15-day Maintenance Allowance Per

100 Major Items. No quantities are listed

Parts may be located by referring to the

in these columns.

Refer to TM 9-2300-

Table of Contents which lists the titles

223-34P for allowance factors for items

of all illustrations.

to be stocked. If any item appears here-

Refer to paragraph

2, in this appendix, for an explanation of

in and is not listed in TM 9-2300-223-34P,

illustration and text relationship.

it can be requisitioned as required for

immediate use only.

6. Abbreviations and Symbols

Depot

Maintenance

Guide

Per

100

Abbreviations.

Major Items.

(1)

This column lists the guide

alw -------------------------- allowance

assy --------------------- assembly(ies)

quantity factors for the repair

br -------------------------------

brass

parts recommended for the re-

build of 100 major components

cd- or zn-chromate-fin. -- cadmium or zinc

chromate finish

and/or major end items.

cd- or zn-pltd ---------- cadmium or zinc

plated

The quantities indicated in this

(2)

cop. ----------------------------

copper

column are for initial requisi-

DA --------------- Department of the Army

tion.

They will be revised by

dir _____________________________ direct

the depot organization to con-

ea ------------------ - ------------- each

form to actual usage, which may

ech -------- --------- ----------- echelon

be more or less than the quan-

----------------------- for example

tities indicated herein.

e.g.

equip. -----------------------

equipment

---------------------- and so forth

etc .

Since the allowance factors are

(3)

fig. ----------------------------

figure

based on 100 equipments, it is

fil-hd ------------------ fillister head

necessary to compute the exact

fl-hd ------------------------ flat head

quantity authorized. This quan-

FM ------------------------ field manual

tity is determined by the use

ft ------------- ------------- feet(foot)

of a simple mathematical for-

hex-hd -------------------- hexagon head

mula.

Resulting fractional

id -------- - ------------ inside diameter

values of 0.5 or larger will

be rounded to the next higher

i.e. --------------------------- that is

illust - - - - - - - - - - - - - - - - - - illustration

Fractional values be-

number.

in. ------------------------------- inch

low 0.5 will be rounded to the

next lower number.

----------------------- incorporated

inc

gen ----------------------------

general

If the number of

-------------------------------- long

Example 1:

lt ----

------------------- light(weight)

equipments supported is 30, and

---------- ------------ maintenance

maint

the allowance factor for 100

equipments is 1.9, the following

med

-----------------------------

medium

NC ------------------- American National

computation would be made:

Coarse Thread

NF -------------------

American

National

Fine Thread

Since the resulting figure is

no. -----------------------:----7 number

od ------------------- outside diameter,

larger than 0.5, the echelon

would be authorized a quantity

olive drab

ORD - - - - - - - - - - - - - - - - - - - - - - - - - - - O r d n a n c e

of 1.