TM 55-4920-401-13&P
(2) Fig. Column. This column lists the number of the figure where the item is identified located. The
figures are-in numerical order in Section II and Section III.
(3) Item Column. The item number identifies the item associated with the figure listed in the adjacent
FIG. column. This item is also identified by the NSN listed on the same line,
b. Part Number Index. Part numbers in this index are listed by part number in ascending
alphanumeric sequence (i.e., vertical arrangement of letter and number combination which places the first
letter or digit of each group in order A through Z, followed by the numbers 0 through 9 and each following
letter or digit in like order).
(1) FSCM Column. The Federal Supply Code for Manufacturer (FSCM) is a 5-digit numeric code us-
ed to identify the manufacturer, distributor, or Government agency, etc., that supplies the item.
(2) Part Number Column. Indicates the primary number used by the manufacturer (individual, firm,
corporation, or Government activity), which controls the design and characteristics of the item by means of
its engineering drawings, specifications standards, and inspection requirements to identify an item or
range of items.
(3) Stock Number Column. This column lists the NSN for the associated part number and manufac-
turer identified in the Part Number and FSCM Columns to the left.
(4) FIG. Column. This column lists the number of the figure where the item is identified located in
Section II and III.
(5) Item Column. The item number is that number assigned to the item as it appears in the figure
referenced in the adjacent figure number column,
C-5. Special Information. Use the following subparagraphs as applicable:
a. Usable On Code. The usable on code appears in the lower left corner of the Description column
heading, Usable on codes are shown as “UOC: . .” in the Description Column (justified left) on the first
line applicable item description/nomenclature. Uncoded items are applicable to all models.
b. Index Numbers. Items which leave the word BULK in the figure column will have an index number
shown in the item number column. This index number is a cross-reference between the National Stock
Number/Part Number Index and the bulk material list in Section II.
c. Associated Publications. Not Applicable.
C-6. How to Locate Repair Parts.
a. When National Stock Number or Part Number is Not Known.
(1) First. Using the table of contents. determine the assembly group or subassembly group to which
the item belongs. This is necessary since figures are prepared for assembly groups
groups, and listings are divided into the same groups.
(2) Second. Find the figure covering the assembly group or subassembly group
belongs.
(3) Third. Identify the item on the figure and note the item number.
and subassembly
to which the item
C-6
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