National Stock Number (NSN) 5310-00-208-4271, or NIIN 002084271, (nut,self-locking,cap) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 4 stock numbers: 5310008542151, 5310008446866, 5310008125794, 5310008156505.
There are 17 manufacturer part numbers associated with this NSN. 15 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 17 suppliers. Today, 13 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
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 6 contracts issued for this part number, with 6 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE4A625V086B, SPE4A623V9883, SPE4A623V2788, SPE4A622V661K, SPE5E318V6067. The total value of the awarded contracts has been US$ 16,765.71.
This NSN is very common among different weapons systems, belonging to 56 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 Apr 12, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 05275. [A NUT INTERNALLY THREADED FROM ONE END, AND COMPLETELY ENCLOSED ON THE OPPOSITE END. THE OUTER PERIPHERY PARALLEL TO THE THREADED AXIS MAY BE SQUARE, CYLINDRICAL, HEXAGONAL, OCTAGONAL, DODECAGONAL OR THE LIKE AND TAPER TO A CONE OR DOME SHAPE ON THE CLOSED END. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMEBER. EXCLUDES:NUT (1), STAMPED.]. 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 5310002084271 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.