Classification (FSC) that groups similar items into classes. The last 9 digits of the NSN is the National Item Identification Number (NIIN). The first 2 digits of the NIIN identifies the NATO country that cataloged the item, and the last 7 digits identifies the item.
As pointed out above, NSN numbers provide you with the federal class of the item (first 4 digits), what country cataloged the item (digits 5 and 6). and the item identification number (last 7 digits).
Part III of the COSAL is the section used to cross- reference manufacturer's part numbers to NSNs.
Each maintenance department is required to maintain control over repair parts. One of the biggest problems in some maintenance programs is the control of direct turnover (DTO) repair parts. DTO parts are those ordered for direct turnover to the user.
For DTO parts to be complete and accurate, all NAVSUP Form 1250s for NIS and NC repair parts must pass through the cost control clerk and the DTO clerk before being submitted to the supply office. The supply office maintains current procurement and shipping status for items on order. When requesting the status of a requisition from supply, DTO clerks must be able to identify, by requisition number, the procurement document they are interested in. Accurate DTO parts records accomplish this and allow the cost control clerk to identify the USN-number of the equipment each part was ordered for. The DTO repair parts status keeping system provides excellent accountability with minimum effort. This system consists of two separate records designed to be used together: the DTO log and the repair parts summary sheets.
The DTO log (fig. 1-17) is a sequential record and proof of order for all NAVSUP Form 1250-1/-2 requests for NIS/NC/Non-NSN requirements submitted to the repair parts storeroom. It is maintained in such a way that the last NAVSUP Form 1250 entered is the last parts request submitted to the supply office. This tells the DTO clerk when the requisition was submitted to supply. Normally, supply should order priority "A" (NORS) requisitions within 24 hours and priority "B" and "C" requisitions within 7 days. After accomplishing all ordering actions and issuing a procurement document, supply enters the requisition number in block "B" of a NAVSUP Form 1250-1 or block "I" of a NAVSUP Form 1250-2. The pink copy is returned to the repair parts storeroom where outstanding requisition data is posted to stock record cards for NIS items. The yellow copy is returned to the cost control office to log the requisition number in the DTO log. The yellow copy of NAVSUP Form 1250 is retained as proof of order and maintained with the repair parts summary sheet in the DTO files. The DTO log provides a cross-index between the requisition number, the department order number, and the USN number. This cross-reference allows the DTO clerk to determine the appropriate USN number for which the part was ordered. This is invaluable for follow-up actions in the event of lost or misfiled requisitions, lost or missing shipping documents, partial or duplicate parts shipments, and so forth. The columns required to maintain an effective DTO log are listed and explained below.
DATE - The date NAVSUP Form 1250 was submitted to supply. It is indicated by the Julian date: For example, December 12, 1996, is written 6347.
DEPARTMENT ORDER NUMBER - Internal control number assigned to each NAVSUP Form 1250 submitted to supply, numbered in sequence starting with 0001.
PM GROUP - The PM group that the appropriate USN-number equipment is assigned.
USN NUMBER - Identifies the vehicle for which the part was ordered.
NSN/PART NUMBER - The NSN or part number of the ordered item.
ITEM - Nomenclature or noun name of the item ordered.
UNIT PRICE - The price of a single item.
QUANTITY - Total number of items ordered.
PRIORITY - Urgency-of-need Designator (A, B, or C).
NC/NIS - Provides ready information on whether an item is Not Carried or Not In Stock.
REQUISITION NUMBER - Entered when the yellow copy is returned from supply. All supply office documents are tiled by this number.Continue Reading