TM 11-6625-251-20P
b. Federal Stock . Indicates the Federal stock number assigned to the item and will be used for
requisitioning purposes.
c. Description. Indicates the Federal item name and a minimum description required to identify the item.
The last line indicates the reference number followed by the applicable Federal Supply Code for Manufacturer
(FSCM) in parentheses. The FSCM is used as an element in item identification to designate manufacturer or
distributor or Government agency, etc., and is identified in SB 708-42.
d. Unit of Measure (U/M). Indicates the standard or basic quantity by which the listed item is used in
performing the actual maintenance function. This 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 of issue, the lowest unit of issue that will satisfy the
required units of measure will be requisitioned.
e. Quantity Incorporated in Unit. This column indicates the quantity of the item used in the equipment.
Subsequent appearances of the same item in the same assembly are indicated by the letters "REF".
f. 15-Day Organizational Maintenance Allowance.
(1) The repair parts indicated by an asterisk in the allowance column represent those authorized for use
at the organizational category, and will be requisitioned on an "as required" basis, until stockage is
based on demand in accordance with AR 710-2.
(2) Major Army commanders are authorized to approve reduction in the range of support items
authorized for use in units within their commands. Recommendations for increase in range of items
authorized for use will be forwarded to Commander, U.S. Army Electronics Command, ATTN:
AMSEL-MA-TMDE, Fort Monmouth, N.J., 07703. Any changes approved will be reflected in a
revision to the RPSTL.
(3) Allowance quantities are indicated in the special tools list section for special tools, TMDE. and other
equipment.
g. Illustration. This column is divided as follows:
(1) Figure number. Indicates the figure number of the illustration on which the item is shown in TM 11-
6625-251-15.
(2) Item number. Indicates the item number or reference designation used to reference the item in the
illustration.
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 -
Code
Used on
BWW
ME-22/PCM
BWX
ME-22A/PCM
b. The following publication pertains to the equipment and its components:
TM 11-662-251-15
Organizational, DS, GS, and Depot Maintenance Manual: Test Set TS-140/PCM,
Signal Generator SG-15/ PCM, and SG-15A/PCM and Decibel Meter ME-22/PCM
and ME-22A/PCM.
1-5. Location of Repair Parts
a. This manual contains one cross-reference index (sec V) to be used to locate a repair part when either
the Federal stock number or reference number (manufacturer's part-number) is known. The first column in the
index is prepared in numerical or alphanumeric sequence in ascending order. The reference numbers
(manufacturer's part numbers) are listed immediately following the last listed Federal stock number in the index
of Federal stock numbers.
b. When the Federal stock number or reference number is known, follow the procedures given in (1) and
(2) below.
(1) Refer to the index of Federal stock numbers (sec V) and locate the Federal stock number or
reference number. The FSN and reference number are cross-referenced to the applicable figure and
item number or reference designation.
(2) Refer to the repair parts list (sec III) and locate the figure number (col 7a) and item number or
reference designation (col 7b) as noted in the FSN index.
c. When the figure and item number or reference designation are known, scrutinize columns 7a and 7b
of the repair parts list (sec III) until the item is located.
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