measure is expressed by a two-character alphabetical
abbreviation: e.g., ea. in, pr, etc., and is the basis used
to indicate quantities and allowances in subsequent
columns. When the unit of measure differs from the unit
Repair Parts and Special
of issue, the lowest unit of issue that will satisfy the
required units of measure will be requisitioned.
AN/USM-33 and AN/USM-
e. Quantity Incorporated in Unit. This column
indicates the quantity of the item used in the equipment.
30-Day DS/GS Maintenance Allowances.
1-5. Location of Repair Parts
a. This manual contains one cross-reference
index (sec IV) to be used to locate a repair part when
Allowances in GS column are for GS
either the Federal stock number or reference number
(manufacturer's part number) is known. The first column
(1) The repair parts indicated by asterisk
in the index is prepared in numerical or alphanumeric
entries in separate allowance columns for DS and GS
sequence in ascending order. The reference numbers
represent those authorized for use at that category of
(manufacturer's part numbers) are listed immediately
maintenance to be requisitioned on an "as required"
following the last listed Federal stock number in the
basis, until stockage is based on demand in accordance
index of Federal stock numbers.
with AR 710-2.
b. When the Federal stock number or
(2) Allowance quantities are indicated in
reference number is known, follow the procedures given
the special tool lists section. for special tools, TMDE,
in (1) and (2) below.
and other support equipment.
(1) Refer to the index of Federal stock
Equipments/Contingency Planning Purposes. Column
numbers (sec IV) and locate the Federal stock number
or reference number. The FSN and reference number
intentionally left blank.
are cross-referenced to the applicable figure and item
h. Depot Maintenance Allowance Per 100
number or reference designation.
Equipments. This column indicates opposite the first
(2) Refer to the repair parts list (sec II) and
appearance of each item the total quantity authorized for
locate the figure number (col 10a) and item number or
depot maintenance of 100 equipments.
reference designation (col 10b) as noted in the FSN
This column is divided as
c. When the figure and item number or
(1) Figure number. Indicates the figure
reference designation are known. scrutinize columns
number of the illustration on which the item is shown in
10a and 10b of the repair parts list (sec II) until the item
(2) Item number.
Indicates the item
d. When the FSN. reference number, figure
number or reference designation used to reference the
number, item number and reference designation are not
item in the illustration.
known, scrutinize column 3 of the repair parts list (sec II),
which is arranged in alphabetical order.
1-4. Special Information
a. Usable on codes are included in column 3.
Uncoded items are applicable to all models.
Identification of the usable on codes used in this
publication are -
1-7. Reporting of Equipment Publication
b. The following publications pertain to the
recommendations for improving this publication by the
equipment and its components:
individual user is encouraged.
Reports should be
submitted on DA Form 2028 (Recommended Changes
to Publications) and forwarded direct to Commander,
Field, and Depot
US Army Electronics Command, ATTN: AMSELMA-
CRA, Fort Monmouth. N.J 07703.
(Next printed page is 6)