the callout number used to reference the item in the
cubic feet per minute
4. Special Information
a. Parts which require manufacture or assembly at
a category higher than that authorized for installation will
indicate in the source column the higher category.
b. Action change codes indicated in the left-hand
margin of the listing page denote the following:
N - Indicates an added item not included in
C - Indicates a change in data.
F- Indicates a change in FSN only.
c. The following publication pertain to the Filter
Unit, Gas Particulate, M7A1:
TM 3-4240-201-12, Operator and Organizational
unified course thread
5. How to Locate Repair Parts
a. When Federal stock number or reference
number is unknown:
Using the table of contents,
determine the functional group within which the repair
7. Federal Supply Code for Manufacturers
part belongs. This is necessary since illustrations are
prepared for functional groups and listings are divided
Mueller Electric Co.
into the same groups.
1583 East 31 Street
(2) Second. Find the illustration covering the
Cleveland, Ohio 44114
functional group to which the repair part belongs.
National Aerospace Standards
Identify the repair part on the
illustration and note the illustration figure and item
number of the repair part.
Association of America
(4) Fourth. Using the repair parts listing, find
the functional group to which the repair part belongs and
locate the illustration figure and item number noted on
b. When Federal stock number or reference
number is known:
Perfecting Service Co.
(1) First. Using the Index of Federal Stock
Numbers and Reference Numbers, find the pertinent
332 Atando Street
Federal stock number or reference number. This Index
Charlotte, N. C. 28205
is in ascending FSN sequence followed by a list of
reference numbers in ascending alpha-numeric
407 E. Hawley Street
sequence, cross-referenced to the illustration figure
Mundelein, Illinois 60060
number and item number.
Perfecting Service Co.
(2) Second. Using the repair part listing, find
P. O. Box 1949
the functional group of the repair part and the illustration
Charlotte, North Carolina 28201
figure number and item number referenced in the index
of Federal stock numbers and reference numbers.
recommendations for improving this manual by