National Stock Number
5340-00-597-6971
National Stock Number (NSN) 5340-00-597-6971, or NIIN 005976971, (fastener,flare lock) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.
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: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. 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) 20259. [A SHOULDERED HOLLOW SCREW AND THREADED SLEEVE ASSEMBLY, DESIGNED TO BE FASTENED IN PLACE BY TURNING THE SCREW, CAUSING ONE END OF THE SLEEVE TO FLARE OVER THE SHOULDER AND AGAINST THE MATERIAL THROUGH WHICH IT HAS BEEN INSERTED. ALSO, A COUNTERSUNK HEAD HOLLOW SCREW AND FLARED SLEEVE-NUT ASSEMBLY, DESIGNED TO MATE WITH A DIMPLED HOLE IN THE MATERIAL TO WHICH IT IS FASTENED. THE HOLLOW SCREWS MAY ALSO HAVE INTERNAL THREADS FOR ATTACHING SCREWS. SEE ALSO SHIELD, EXPANSION.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5340005976971 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.