National Stock Number (NSN) 5310-01-099-6537, or NIIN 010996537, (nut,self-locking,double hexagon) was assigned August 22, 1980 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5310011247829.
There are 8 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers 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 16 contracts issued for this part number, with 41 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: SPE4A222F0470, SPE4A221F6367, SPE4A221F5373, SPE4A221F3328, SPE4AX21F1277. The total value of the awarded contracts has been US$ 1,353,588.88.
This NSN is fairly common among different weapons systems, belonging to 18 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 Oct 23, 2018, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 05276. [A NUT HAVING 12 DRIVE POINTS AND 24 SIDES. THE BEARING SURFACE MAY BE WASHER FACED. AN INTEGRAL LOCKING FEATURE IS INCORPORATED IN THE DESIGN OF THE HEAD OR IN THE THREADS.]. 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 5310010996537 does not contain precious metals.
This NSN is associated to Schedule B 9021100090: orthopedic or fracture appliances and parts and accessories thereof, nesoi. The Schedule B End Use is listed as cell phones and other household goods, n.e.c.. NAICS classification category 339113: surgical appliance and supplies manufacturing.
This information was last updated on Jun 01, 2025.