National Stock Number
1660-00-560-4009
National Stock Number (NSN) 1660-00-560-4009, or NIIN 005604009, (coupling,flexible) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 13 contracts issued for this part number, with 14 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: SPE4A725P1020, SPE4A724PD336, SPE4A724PD336, SPE4A724P9239, SPE4A724P9239. The total value of the awarded contracts has been US$ 2,172,763.42.
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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 297,930. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 03, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. 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 1660005604009 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.