National Stock Number (NSN) 6645-00-255-1372, or NIIN 002551372, (meter,time totalizing) was assigned July 30, 1969 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 25 stock numbers. Five of the National Stock Numbers that it replaces are: 6645008279841, 6645012213771, 6645011527599, 6645010370553, 6645008938109.
There are 28 manufacturer part numbers associated with this NSN. 14 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 12 suppliers. Today, 9 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 18 contracts issued for this part number, with 18 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A625F096P, SPE4A625F096P, SPE4A625F4106, SPE4A625F4106, SPE4A625F2537. The total value of the awarded contracts has been US$ 400,475.68.
This NSN is very common among different weapons systems, belonging to 93 different platforms.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 02, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 08066. [AN INSTRUMENT THAT AUTOMATICALLY MEASURED, AND CUMULATIVELY REGISTERS THE TOTAL OPERATING OR IDLE TIME OF ANY CIRCUIT, MACHINE OR SYSTEM, TO WHICH IT IS CONNECTED. SEE METER, FREQUENCY AND TIME TOTALIZING, ELECTRICAL.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6645002551372 contains an unknown precious metal.
This NSN is associated to Schedule B 9106903000: other time of the day apparatus for measuring, recording or otherwise indicating intervals of time, nesoi. The Schedule B End Use is listed as photo, service industry machinery.
This information was last updated on Aug 01, 2025.