The information contained in this chapter has
general application to all ships. Except for reactor or
plant support material in nuclear powered ships,
shipboard material inventories are divided into five
areas for management purposes as follows:
OPERATING SPACE ITEMS (OSIs).
Operating space items are in the custody and
under the management of the department heads.
Certain operating space items which require
special inventory control are designated as
REPAIR PARTS. Repair parts are in the custody
of the supply officer when supply department
stowage space permits. They are always under
CONSUMABLES. Consumables are in the
custody of the supply officer when supply
department stowage space permits. Stocked
consumables (i.e., consumable items carried
as supply department stock) are managed by the
supply officer. This is the case if the items are
stored in supply or other department spaces.
Nonstocked consumables (i.e., consumable
items not carried as supply department stock)
are in the custody and under the management of
other department heads.
MAINTENANCE ASSISTANCE MODULES
(MAMs). Maintenance assistance modules are
in the custody of the supply officer. They are
located in the appropriate operating and
maintenance spaces under the subcustody of
operating or maintienance personnel.
READY SERVICE SPARES (RSSs). Ready
service spares are repair parts in the custody of
the supply officer.
They are located in the
appropriate operating and maintenance spaces
under the subcustody of operating/maintenance
Throughout this chapter you probably will
encounter new terms referring to inventory control.
When you encounter a new term refer to the glossary
for an explanation.
FORMS AND PUBLICATIONS
The forms and publications used in the inventory
management of general stores in nonautomated ships
are found m the NAVSUP P-485. These publications
contain the how to detailed information in the area of
inventory management for which each SK is
responsible. Each of the publications listed will be used
many times in the course of an SKs ctamer. Each of the
forms is a tool for you to document the inventory
Physical inventory is a prerequisite to efficient
inventory control. The primary objective of a physical
inventory is to make sure that the balances reflected in
stock or custody records agree with the actual physical
quantities on hand.
TYPES OF INVENTORY
The type of inventory to be performed depends on
the type of material to be inventoried and the type of
Bulkhead to Bulkhead Inventory
A bulkhead to bulkhead inventory is a physical
count of all stock material aboard the ship or within a
specific storeroom. A bulkhead to bulkhead inventory
of the ships entire stock of repair parts is usually
performed during a Supply Operating Assistance
Program/Integrated Logistics Overhaul. A bulkhead to
bulkhead inventory of a specific storeroom is performed
when random sampling inventory of that storeroom
fails to meet an inventory accuracy rate of 90%. It is
also performed when directed by the TYCOM incident
to a supply management assist (SMA), when directed
by the commanding officer, or when circumstances
indicate that it is needed to maintain effective inventory