F-Reparable item. When uneconomically reparable,
EN-91A and EN-91B
condemn and dispose at the direct support level.
TM 11-6740-265-12-1, Printer, Projection, Photographic
c. National Stock Number. Indicates the National stock
b. The illustrations in this manual are identical to those
number assigned to the item and will be used for
published in TM 11-6740-265-34P-1. Only those parts
d. Part Number. Indicates the primary number used by
assigned the third position SMR maintenance code "C"
or "O" are listed in the tabular listing; therefore, there
the manufacturer (individual, company, firm, corporation,
may be a break in the item number sequence. Only
or Government activity), which controls the design and
illustrations containing organizational authorized items
characteristics of the item by means of its engineering
appear in this manual.
drawings, specifications, standards, and inspection
requirements to identify an item or range of items.
5. How to Locate Repair Parts
a. When National stock number or part number is
When a stock numbered item is requisitioned,
the repair part received may have a different
(1) First. Using the table of contents, determine
part number than the part being replaced.
the functional group within which the item belongs. This
e. Federal Supply Code for Manufacturer (FSCM).
is necessary since illustrations are prepared for
The FSCM is a 5-digit numeric code listed in SB 708-42
functional groups and listings are divided into the same
which is used to identify the manufacturer, distributor, or
(2) Second. Find the illustration covering the
Government agency, etc.
f. Description. Indicates the Federal item name and, if
functional group to which the item belongs.
(3) Third. Identify the item on the illustration and
required, a minimum description to identify the item.
g. Unit of Measure (UIM). Indicates the standard of
note the illustration figure and item number of the item.
(4) Fourth. Using the Repair Parts Listing, find the
the basic quantity of the listed item as used in performing
the actual maintenance function. This measure is
figure and item number noted on the illustration.
b. When National stock number or part number is
expressed by a two-character alphabetical abbreviation
(e.g., ea, in, pr, etc). When the unit of measure differs
from the unit of issue, the lowest unit of issue that will
(1) First. Using the Index of National Stock
satisfy the required units of measure will be
Numbers and Part Numbers, find the pertinent National
stock number or part number. This index is in NIIN
h. Quantity Incorporated in Unit. Indicates the quantity
sequence followed by a list of part numbers in
of the item used in the breakout shown on the illustration
alphameric sequence, cross-referenced to the illustration
figure, which is prepared for a functional group,
figure number and item number.
subfunctional group, or an assembly. A "V" appearing in
(2) Second. After finding the figure and item
this column in lieu of a quantity indicates that no specific
number, locate the figure and item number in the repair
quantity is applicable, (e.g., shims, spacers, etc).
4. Special Information
a. The following publications pertain to the EN-91B
and its components:
TM 11-6740-265-12, Printers, Projection Photographic