National Stock Number
5310-00-181-6981
National Stock Number (NSN) 5310-00-181-6981, or NIIN 001816981, (nut,plain,clinch) was assigned July 27, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 5310003363299, 5310009189541, 5310009499256.
There are 15 manufacturer part numbers associated with this NSN. 12 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 14 suppliers. Today, 8 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 not been procured by the US Government in over a year. There have been 6 contracts issued for this part number, with 5 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: SPE4A624PC956, SPE4A623V034R, SPE4A622PS471, SPE4A622V102F, SPE4A622V097T. The total value of the awarded contracts has been US$ 3,869.11.
This NSN is very common among different weapons systems, belonging to 76 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 Aug 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 01860. [A NUT HAVING A SLEEVE PORTION ON ITS UNDER SIDE, WHICH CAN BE CRIMPED OR CLINCHED TO HOLD THE ITEM IN PLACE WHEN INSERTED IN A HOLE.]. 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 5310001816981 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.