ARMY TM 10-4610-309-14
MARINE CORPS TM10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
SUPPORTING INFORMATION
COMPONENTS OF END ITEM (COEI) AND BASIC ISSUE ITEMS (BII) - ARMY
SCOPE
This work package lists COEI (Components of End Item) and BII (Basic Issue Items) for the TWPS
(Tactical Water Purification System) to help you inventory items for safe and efficient operation of the
equipment.
GENERAL
The COEI and BII information is divided into the following lists:
Components of End Item (COEI). This list is for information purposes only and is not authority to
requisition replacements. These items are part of the TWPS. As part of the end item, these items must
be with the end item whenever it is issued or transferred between property accounts. Items of COEI are
removed and separately packaged for transportation or shipment only when necessary. Illustrations are
furnished to help you find and identify the items.
Basic Issue Items (BII). These essential items are required to place the TWPS in operation, operate it,
and to do emergency repairs. Although shipped separately packaged, BII must be with the TWPS during
operation and when it is transferred between property accounts. Listing these items is your authority to
request/requisition them for replacement based on authorization of the end item by the TOE/MTOE.
Illustrations are furnished to help you find and identify the items.
EXPLANATION OF COLUMNS IN THE COEI AND BII LIST
Column (1) - Illus Number. Gives the number of the item illustrated.
Column (2) - National Stock Number (NSN). Identifies the stock number of the item to be used for
requisitioning purposes.
Column (3) - Description, CAGEC and Part Number. Identifies the Federal item name (in all capital
letters) followed by a minimum description when needed. The stowage location of COEI and BII is also
included in this column. The last line below the description is the CAGEC (commercial and Government
entity code) (in parentheses) and the part number.
Column (4) Usable On Code. When applicable, gives you a code if the item you need is not the same
for different models of equipment.
Column (5) - Unit of measure (U/M). Indicates the physical measurement or count of the item as issued
per the National Stock Number shown in column (2).
Column (6) - Qty Rqr. Indicates the quantity required.
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