Special Mission Usage
Administrative Requirements. The pur-
chase of consumables or medical OPTAR
restricted items may be made from the
medical OPTAR with the approval of the
executive officer. Books and publication
listed in NAVMEDCOMINST 6820.4
series may also be purchased with this
FEDERAL SUPPLY CATALOG
The Defense Logistics Agency administers the
Federal Supply Catalog System under the direc-
tion of the Secretary of the Navy. This includes
the naming, description, classification, and
numbering of all items carried under centralized
control of the United States Government. Only
one identification maybe used for each item from
purchase to final disposal.
The Department of Defense Supply System
contains more than 4 million different items and
the Navy alone stocks more than 1 1/2 million
items. To order supplies effectively from this
system, you must have a basic understanding of
its structure and terminology.
BULK STOCKMaterial in full, unbroken
containers available for future use.
CONSUMABLESAny supplies that are
consumed in use or disposed of after use.
that is under management control due to high
replacement cost, likelihood of pilferage, or is
highly essential to mission accomplishment.
EQUIPMENTAny functional unit of hull,
mechanical, electrical, ordnance, or electronic
material operated singly or as a component of a
system or subsystem. Equipment is a noncon-
MATERIALAll supplies, repair parts,
equipment, and equipage.
REPAIR PARTA replaceable part of
machinery or equipment.
RESERVE STOCKItems on hand and
available for issue for a specific purpose, but not
for general use.
STANDARD STOCKMaterial under the
control of an inventory manager and identified
by a National Item Identification Number (NIIN).
STOCK UNITThe smallest quantity of a
FEDERAL SUPPLY CLASSIFICATION
The Federal Supply Classification (FSC)
System is designed to permit the classification of
all items of supply used by the United States
Government. Each item of supply is classified by
a single 4-digit number. The first two digits iden-
tify the major group and the second two digits
identify the class of commodities within that
As presently established, the FSC consists of
90 groups, some of which are currently un-
assigned. These groups are subdivided into ap-
proximately 600 classes.
An example of an FSC group and its classes
is as follows:
6505 - Drugs Biological, and
6508 - Medicated Cosmetics
6510 - Surgical Dressing Material
NATIONAL STOCK NUMBERS
Every item in the Federal Supply Catalog is
identified by a single 13-digit number. The Na-
tional Stock Number (NSN) is composed of a
4-digit classification code and a 9-digit National
Item Identification Number.
The National Item Identification Number is
a 9-digit number that identifies each item of sup-
ply used by the Department of Defense. Although
the NIIN is part of the NSN, it is used inde-
pendently to identify an item within a classifica-
tion. Unlike the FSC, the NIIN is assigned serially,
without regard for the name, description, or
classification of the item.
NAVY ITEM CONTROL NUMBERS
The Navy Item Control Number (NICN) iden-
tifies items of material that are not included in
the FSC but are stocked in the Navy supply
system. These are 13-digit numbers assigned by
inventory control managers for either temporary
or permanent control.
LOCAL ITEM CONTROL NUMBERS
Technically, any item identification number
assigned by an activity for its own use is a Navy
Item Control Number. To distinguish between