National Stock Number
6645-01-285-4284
National Stock Number (NSN) 6645-01-285-4284, or NIIN 012854284, (chronometer) was assigned September 14, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 19 contracts issued for this part number, with 31 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE4A625F034V, SPE4A622F8965, SPE4A622F8966, SPE4A721F7351, SPE4A621F4782. The total value of the awarded contracts has been US$ 1,684,587.57.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
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 Sep 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 18695. [AN INSTRUMENT FOR PRECISELY DETERMINING TIME, MANUFACTURED TO CLOSE TOLERANCES TO ASSURE THE TIME-KEEPING QUALITIES OF DEPENDABILITY AND CONSISTENCY OF RATE. THESE QUALITIES ARE ACCURATELY ASCERTAINED BY COMPARISON WITH MORE EXACT DEVICES OR BY ASTRONOMICAL METHODS SO THAT THE ACCUMULATED ERROR MAY BE TAKEN INTO ACCOUNT WHEN DETERMINING TIME. ITS USUAL USES ARE TO INDICATE TIME FOR NAVIGATIONAL PURPOSES, AND TO SERVE AS A REFERENCE FOR LESS ACCURATE TIMEPIECES. IT IS USUALLY PROVIDED WITH A WINDING INDICATOR DIAL AND IS USUALLY MOUNTED IN GIMBALS TO MAINTAIN THE INSTRUMENT IN A LEVEL POSITION. MAY CONSIST OF A SPRING DRIVEN OR OTHER TYPE OF MOVEMENT WHICH IS CAPABLE OF EXACTING PERFORMANCE WITHOUT REGULATION THROUGHOUT THE NORMAL RANGE OF ROOM TEMPERATURES. NOT DESIGNED FOR CARRYING ON THE PERSON.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6645012854284 does not contain precious metals.
This NSN is associated to Schedule B 9105990000: other clocks, not electrically operated, except alarm & wall clocks. The Schedule B End Use is listed as cell phones and other household goods, n.e.c..
This information was last updated on Jul 01, 2025.