2, 4, 6, 8
Material held in the appropriations
purchases account (APA) and issued
without charge to the requisitioner.
Material is not in a stores account
(nonstores) and is issued without charge to
The second character (letter), in conjunction with
the first numeric character, identifies the specific
inventory control point, office, or inventory manager
that has cognizance or controls the issuance of the
Special material identification codes (SMICs) are
assigned to certain items to ensure their technical
integrity. Because of the nature of these items, they have
stricter requirements regarding procurement, issue and
receipt, inspections, tests, storage, and handling. An
example would be items specially designed,
manufactured, and tested for use in nuclear reactor
plants, which require special handling, machining, and
so forth, before being installed and used.
A SMIC is a two-digit alpha or alphanumeric code
(for example, 5330-00-010-04960-X3). NAVSUP
P-485, appendix 9L, lists and explains the SMICs
As part of the federal catalog system, each item of
supply is assigned an official government name.
Personnel frequently refer to material by trade names
or common terms, rather than the official name.
Referring to an item by its common term is not wrong.
However, only the official name of an item should be
used when recording or requisitioning supplies.
OTHER SOURCES OF
Assume that you do not have a stock number for an
item and cannot locate it in the allowance lists. You
then have two primary sources of information for
identifying the item: (1) other identification data
relating to the item itself and (2) identification
publications in which available data are recorded and
If you can find other identification data, such as
reference numbers for the item, your supply
department may be able to locate the correct NSN. A
reference number may be a part, type, catalog, or
drawing number; or it may be a specification or
nomenclature designation that the manufacturer,
contractor, or governmental agency has applied to the
item. A superseded stock number is also a type of
reference number. One of the most important sources
of identification is the information on nameplates. The
nameplate may include manufacturers name, make,
model number, size, voltage, and the like.
Identification publications, such as a manufacturers
technical manual, may also help you in identifying an
Manufacturers Part Numbers
Commercial catalogs and instruction booklets
issued by manufacturers contain valuable information
you should use in preparing procurement documents
for nonstandard material. Use these catalogs and
booklets as supplements to Navy publications to
identify commercial equipment, repair parts, and
Certain technical material may be serially
numbered, either by direction of the responsible
bureau or systems command or by the manufacturer.
These serial numbers are used in maintaining records
on the material. They appear on all vouchers, records,
custody cards, and survey reports.
Material identification, particularly of portable
and installed equipment, is made easier by referring to
nameplates attached to the equipment. Nameplate data
Is the cognizance symbol a part of the
national stock number?