Numbers and Reference Numbers find the pertinent
each item the total quantity required for distribution and
Federal stock number or reference number. This index
contingency planning purposes. The range of items
is in ascending FSN sequence followed by a list of
indicates total quantities of all authorized items required
reference numbers in alpha-numeric sequence, cross-
to provide for adequate support of 100 equipments for
referenced to the illustration figure number and item
one year. Subsequent appearances of the same item
number.
will have the letters "REF" in the allowance column.
i. Illustration. This column is divided as follows:
(2) Second. Using the Repair Parts Listing,
(1) Figure number.
Indicates the figure
find the assembly group of the repair part and the
number of the illustration in which the item is shown.
illustration figure number and item number referenced in
the Index of Federal Stock Numbers and Reference
(2) Item number.
Indicates the callout
numbers.
number used to reference the item in the illustration.
C-4. Special Information
c. When the Federal stock number or reference
a. Repair parts mortality has been based on 2000
number is known and the repair part is not illustrated:
hours operation per year.
b. Parts which require manufacture or assembly at
(1) First. Using the Index of Federal Stock
a category higher than that authorized for installation will
Numbers and Reference Numbers find the pertinent
indicate in the source column the high category.
Federal stock number or reference number in the
c. Action change codes indicated in the left hand
section titled "Items Not Illustrated" and note the group
margin of the listing page denote the following:
number. This section is in ascending FSN sequence
(Applicable to revision or change only)
followed by a list of reference numbers in alpha-numeric
sequence, cross-referenced to assembly group number.
N--indicates an added item not included in previous
publications.
(2) Second. Using the Table of Contents.
C--Indicates a change in data.
locate the assembly group number and page number.
F--Indicates a change in FSN only.
(3) Third. Using the applicable group number
d. The same illustrations are used to illustrate the
and page number, locate the pertinent stock number or
repair parts and special tools listed in both
reference number in the Repair Parts listing. Items
organizational maintenance section and direct support
which are not illustrated are listed at the end of the
maintenance section.
assembly group to which they belong.
C-6. Abbreviations
C-5. How to Locate Repair Parts
Abbreviations
Explanation
a. When Federal Stock Number or Reference
in.
.................................................... Inch(es)
Number is Unknown:
lg.
.................................................... Long
mtg .................................................... mounting
No. .................................................... Number(s)
(1) First.
Using the table of contents
thd .................................................... thread(s)
determine the assembly group within which the repair
part belongs. This is necessary since illustrations are
C-7. Federal Supply Codes for Manufacturers
prepared for assembly groups, and listings are divided
into the same groups.
Code
Manufacturer
(2) Second. Find the illustration covering the
21122.........Pioneer Mfg. Corp.
assembly group to which the repair part belongs.
24617.........General Motors Corp.
48745.........Preway Inc.
(3) Third. Identify the repair part on the
60380.........Torrington Co., The
illustration and note the illustration figure and item
75543.........Lavelle Rubber Co.
number of the repair part.
76871.........Ohio Nut and Bolt Co.
(4) Using the Repair Parts Listings. find the
81349.........Military Specifications Promulgated by
assembly group to which the repair part belongs and
..................
Standardization Div. Directorate of
locate the illustration figure and item number noted on
..................
Logistic services
the illustration.
91494.........Controls Co. Of American heating & Air
b. When Federal Stock Number or Reference is
..................
Conditioning Div.
known:
96906.........Military Standards Promulgated by
..................
Standardization. Div. Directorate of
(1) First. Using the Index of Federal Stock
..................
Logistic Service.
C-3