Description. Indicates the
HOW TO LOCATE REPAIR
Federal item name and, if required,
a minimum description to identify the
a. When National Stock Number
or Part Number is Unknown:
(1) First. Using the table
Unit of Measure (U/M).
of contents, determine the functional
Indicates the standard of the basic
group within which the item belongs.
quantity of the listed item as used
This is necessary since illustrations
in performing the actual maintenance
are prepared for functional groups,
function. This measure is expressed
and listings are divided into the same
by a two-character alphabetical
abbreviation (e.g., ea, in, pr, etc).
When the unit of measure differs from
(2) Second. Find the
illustration covering the functional
the unit of issue, the lowest unit of
issue that will satisfy the required
group to which the item belongs.,
units of measure will be requisitioned.
(3) Third. Identify the item
on the illustration and note the
illustration figure and item number
h. Quantity Incorporated in Unit.
Indicates the quantity of the item used
of the item.
in the breakout shown on the
(4) Fcurth. Using the Repair
illustration figure, which is prepared
Parts Listing, find the figure and item
for a functional group, subfunctional
group, or an assembly. A "V" appearing
number noted on the illustration.
in this column in lieu of a quantity
indicates that no specific quantity
b. When National Stock Number
or Part Number is Known:
is applicable, (e.g., shims, spacers,
(1) First. Using the Index
of National Stock Numbers and Part
Numbers, find the pertinent National
stock number or part number. This index
is in NIIN sequence followed by a list
Usable on codes are shown in the
description column. Uncoded items are
of part numbers in alphameric sequence,
applicable to all models. Identifica-
cross-referenced to the illustration
tion of the usable codes used in this
figure number and item number.
(2) Second. After finding
the figure and item number, locate the
figure and item number in the repair
Mount, Periscope, M118
Mount, Periscope, M118E1