includes the manufacturers name and the equipment
make or model number, serial number, size, voltage,
and the like.
Certain technical material may be identified only
by a drawing or sketch number. These numbers may be
assigned by the manufacturer, controlling bureau, or
systems command. When you are requisitioning
nonstandard items, be sure to include the drawing
number, if available, to aid in positive identification.
Various items of electronic equipment are
identified by joint electronics-type designations
(JETDs) nomenclature (for example, AN/UYK-7[V]).
They are also identified by Navy type or model number
and manufacturers model number, as well as stock
number and serial number.
Contractors Service Bulletins
Contractors service bulletins include contractors
recommendations for modifying or repairing specific
equipment. They cover a wide range of equipment and
usually contain part numbers, nomenclature, and
names of manufacturers.
When you turn in a requisition for supplies, you set
in motion a long chain of events involving movement
of materials, maintaining stock records, and
procurement actions. Because of this chain of events,
you (the requisitioner) must supply accurate
information to ensure prompt results from the
The Management List-Navy (ML-N) and several
related publications provide you with information for
submitting accurate and error-free requisitions. The
Federal Logistics Data (FEDLOG), NAVSUP P-2002,
or the Naval Logistics Library, available on compact
disk (CD), describes the format and use of these
publications. The supply department is the primary
user of these publications. However, as a division
supply petty officer, you may have an occasional need
for information contained in them. For that reason, the
following short descriptions of these publications is
The ML-N is the basic publication relating to NSN
management data. It is published in NIIN sequence and
includes only items for which Navy interest has been
recorded. Although it includes ammunition items, you
still must use the Catalog of Navy Ammunition Stock,
NAVSEA OD 12067/NAVAIR 11-1-116, for ordering
and reporting items of ammunition.
The ML-N omits subsistence items, such as food.
The source for subsistence items is the book edition of
the Federal Catalog for Subsistence compiled by the
Defense Personnel Support Center. The ML-N also
omits cryptographic, cryptologic, and defense nuclear
items, which are listed in security classified catalogs
produced by the respective DoD agencies.
The ML-N is a Navy-tailored publication;
therefore, many NSNs may be located in the Master
Cross-Reference List (MCRL) that will not be found in
the ML-N. If the item being researched is not found in
the ML-N (including deleted items) and a continuing
requirement exists, the using activity must take the
necessary action to establish Navy interest in
procuring that item. Figure 7-3 shows the format of the
ML-N. Table 7-1 lists the contents of the ML-N.
For definitions and explanations of the various
codes used in the columns of the ML-N, refer to
FEDLOG, NAVSUP P-2002.
Master Cross-Reference List
The MCRL, Part I (fig. 7-4), provides a
cross-reference from a reference number
(manufacturers part number, drawing number, design
control number, etc.) to its assigned NSN. The MCRL,
Part II (fig. 7-5), provides a cross-reference from an
NSN to a reference number.
Which of the following items would require a
Firefighting equipment parts
Parts designed for nuclear plants
Aircraft engine parts