ARMY TM 10-1670-275-23&P
AIR FORCE TO 13C5-25-2
NAVY NAVAIR 13-1-26
C-4. Special Information (cont).
b. Bulk materials required to manufacture items are listed in the Bulk Material Group of this manual.
NSN's for bulk materials are also referenced in the description column of the line item entry for the item to be
manufactured/fabricated. Detailed manufacturing instructions for items source coded to be manufactured or
fabricated are found in this manual.
c. Detailed assembly instructions for items source coded to be assembled from component spare/repair
parts are found In this manual Items that make up the assembly are listed immediately following the assembled
d. Line item entries for repair parts kits and sets appear as the last entries in the repair parts listing for
the figure in which their parts are listed as repair parts.
e. Items which have the word Bulk in the figure number column will have an index number shown in the
item number column. This index number is furnished for use as a cross-reference between the National Stock
Number/Part Number Index and the bulk material list in Section II.
f. In the repair parts list, some items are indented to show that they are a component or components of
the item under which they are indented and indicated by a dot.
C-5. Explanation of Columns (Section IV).
a. National Stock Number (NSN) Index.
(1) Stock number column. This column lists the NSN by National Item identification number (NIIN)
sequence. The NIIN consists of the last nine digits of the NSN, i.e.
When using this column to locate an item, ignore the first 4 digits of the NSN. However, the
complete NSN should be used when ordering items by stock number.
(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
(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
(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