Material Delivery Unit (MDU) The MDU is responsible for the delivery of material to the customer within the established time frame. This unit is also responsible for picking up material from the customers and forwarding them to supply or maintenance. Material delivery unit is responsible for performing the following tasks: l l l l l l l l Receives material and associated documents from the designated pick-up points. Delivers material and associated documents to the designated delivery points. For repairable item issues, picks up the turn-in, logs and records (if applicable) except when delay turn-in is authorized. Validate the CAGE/PN on the turn-in MAF against the issue document. Sign and provide a copy of DD Form 1348 to the customer for use as proof of repairable turn-in. Deliver the turn-in to the Aeronautical Material Screening Unit (AMSU) via SSU. Has the customer sign and annotate the date and time on the issue document when material was delivered. Submits signed proof of delivery (POD) copy to the unit assigned to process the applicable documents. Forwards warehouse refusal requisitions to the RCU for further processing. Receives EXREP or work stoppage notice from DCU and picks up the applicable components from the customers. Delivers EXREP or work stoppage component and associated documents to AMSU via SSU. The NALCOMIS conversation codes primarily used by MDU are N613, N615, N618, N628, and N630. The supporting conversation codes used by MDU are N606, N624, N635, N652, N655, N658, N668, N676, and N693. These conversation codes are described in NALCOMIS user’s manual. Pre-Expended Bin (PEB) Unit The PEB unit is responsible for managing consumable items that are authorized to be pre-expended. Pre-xpended means the item has been paid for by an appropriate account. Since the items are pre-paid, material issued to supported maintenance activities will not require another financial transaction. The PEBs are located in areas that are readily accessible to maintenance personnel. When feasible, PEBs should be located where they can be observed by PEB personnel to ensure their proper usage. To be included in the PEB, the item must have a minimum demand frequency of three per month. The supply officer and the aviation maintenance officer are jointly responsible for determining the items to be added to or purged from the PEB. The total quantity of each item must not exceed an estimated 30-day supply. The PEB stock level requirements for the Metrology and Calibration Program are determined from usage data collected from metrology equipment recall cards by ASD. Items with a unit cost of 0.00 or less can be routinely included in the PEB. Eligible items with a unit cost over 0.00 will be authorized by the commanding officer. The SRS is responsible for replenishing stock in PEB. The stock records are reviewed quarterly to ensure the items meet the demand frequency requirements. The items that do not have sufficient usage are purged and returned to the supporting supply department. As a minimum, any item that does not have a demand within the last 12 months is purged from the PEB. Pilferable PEB items are retained within an enclosure with access limited to authorized personnel only. Various items are NOT authorized for inclusion in the PEB. These items are listed in volume 1, chapter 19, of OPNAVINST 4790.2. The NALCOMIS conversation code N603 is used to initiate a requisition for replenishment of material for the PEB. This conversation code contains an option to produce the PEB requisition listing. Refer to the NALCOMIS user’s manual for detailed information about conversation code N603. Component Control Section (CCS) The CCS performs repairable management functions in support of the Navy supply system. The CCS is responsible for accounting for repairable in storage, repair cycle, and holding areas within the organization. The CCS consists of four units. ‘hey are the Document Control Unit (DCU), Local Repair Cycle Asset (LRCA) Storage Unit, Supply Screening Unit (SSU), and Awaiting Parts (AWP) Unit. The CCS is the direct link between the supply department and the intermediate maintenance activity (IMA). 7-12