TM 5-3610-257-24P
(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 used
to identify the manufacturer, distributor, or Government agency, etc., that supplies the item.
(2) PARTNUMBER 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
manufacturer 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
Sections II and III.
(5) ITEM column. The item number is that number assigned to the item as it appears in the figure
referenced in adjacent figure number column.
5. SPECIAL INFORMATION.
a. USABLE ON CODE. The usable on code appears in the lower left comer 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. ASSOCIATED PUBLICATIONS. The publication listed below pertains to the Camera
Section and its components.
Publication
Short Title
LO 5-3610-257-12
Lubrication Order, Topographic Support
System Camera Section
TM 5-3610-257-14
Topographic Support System, Camera Section
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 and
subassembly groups, and listings are divided into the same groups.
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