Special Mission Usage. These missions include but are not limited to humanitarian, civilian rescue, and drug interdiction operations.  Administrative Requirements. The purchase of consumable or medical OPTAR restricted items may be made from the medical OPTAR with the approval of the executive officer. Medical books and publications listed in NAVMEDCOMINST 6820.1 may also be purchased with this OPTAR. FEDERAL SUPPLY CATALOG SYSTEM LEARNING OBJECTIVE: Recall the terms associated with the Federal Supply System and how to use the Federal Supply Catalog. The Department of Defense Supply System contains more than 4 million items; of this total the Navy stocks more than 1 million items. To order supplies effectively from this system, you must have a basic understanding of the DoD supply system terminology and structure. This includes the naming, description, classification, and numbering of all items carried under centralized control of the United States Government. Only one identification number is used for each item, from purchase to final disposal. TERMINOLOGY To effectively procure and account for naval materials, you will need to be familiar with terminology commonly used in the supply system. Some of the terms with which you should be familiar are discussed below: BULK STOCK Material in full, unbroken containers available for future use. CONSUMABLE Supplies that are consumed or disposed of after use. EQUIPAGE Items that require management control afloat because of high unit cost, vulnerability to pilferage, or indispensability to the ship=s mission. CONTROLLED EQUIPAGE Items of equipage that require special management control because the material is essential for the mission or the protection of life, is relatively valuable, or easily converted to personal use. EQUIPMENT Any functional unit of hull, mechanical, electrical, ordnance, or electronic material, operated singly or as a component of a system or subsystem. Equip- ment is considered noncon- sumable. MATERIAL All supplies, repair parts, equipment, and equipage used in the Navy/Marine Corps. NON- CONSUMABLE Supplies and materials that are not consumed or disposed of after their use. Buildings and equipment are nonconsumable items. REPAIR PART Any item that has an application and appears in an allowance parts list (APL), stock number sequence list (SNSL), integrated stock list (ISL), Naval Ship Systems Command drawings, or a manufacturer=s handbook. RESERVE STOCK Items on hand and available for issue for a specific purpose, but not for general use (for example, decontamination supplies). STANDARD STOCK Material under the control of an inventory manager and identified by a National Item Identification Number (NIIN). The NIIN is the last nine-digits of the Federal Stock Number. STOCK NUMBER The smallest quantity of a supply item. FEDERAL SUPPLY CLASSIFICATION SYSTEM The Federal Supply Classification System is designed to permit the classification of all items of supply used by the federal government. Each item of supply will be included in one—AND ONLY ONE—FSC. The FSC is made up of 2 two-digit 13-4