National Stock Number (NSN) 5310-00-881-0943, or NIIN 008810943, (nut,self-locking,extended washer) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 1680015818091, 5310012533995.
There are 11 manufacturer part numbers associated with this NSN. 7 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 20 suppliers. Today, 18 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 7 suppliers are deemed design controlled or valid supply parts. ISO Group has built a very strong supply chain for this NSN. We have direct relationships with 26 sources of supply.
This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 47 contracts issued for this part number, with 64 awards given. There is heavy competition for this NSN. The US Government has awarded contracts to 15 different suppliers. The last contract numbers awarded were: SPE4A625PL518, SPE4A625PK318, SPE4A625PK318, SPE4A625PK318, SPE4A625PF070. The total value of the awarded contracts has been US$ 1,478,368.44.
This NSN is very common among different weapons systems, belonging to 173 different platforms.
This national stock number is in high demand. Globally, demand for this NSN has originated from 13 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 30, 2019, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 29730. [A NUT HAVING 6 FLAT SIDES AND AN INTEGRAL WASHER WHICH EXTENDS BEYOND THE FLATS OR PERIPHERY. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER.]. 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 5310008810943 contains silver.
This NSN is associated to Schedule B 7318160000: nuts of iron or steel. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.
This information was last updated on May 01, 2025.