National Stock Number
6645-01-564-0569
National Stock Number (NSN) 6645-01-564-0569, or NIIN 015640569, (contr unit whistle) was assigned June 3, 2008 in the Federal Logistics Information System (FLIS). This NSN replaces 2 stock numbers: 6645012846533, 6645012946403.
There are 5 manufacturer part numbers 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.
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 9 contracts issued for this part number, with 9 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: SPE4A625P7687, SPE4A624V405W, SPE4A624PN083, SPE4A624V1575, SPE4A623V4702. The total value of the awarded contracts has been US$ 28,863.30.
This NSN is unique to one weapons system.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 27,629. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 04, 2020, 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 or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. 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 6645015640569 does not contain precious metals.
This information was last updated on May 01, 2025.