National Stock Number (NSN) 2640-01-563-1421, or NIIN 015631421, (run-flat kit,insert) was assigned May 2, 2008 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 7 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 30 contracts issued for this part number, with 29 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7LX24F83F7, SPE7LX24F73H6, SPE7LX24F73H6, SPE7LX24F28F3, SPE7LX24F541E. The total value of the awarded contracts has been US$ 4,729,711.41.
This NSN is fairly common among different weapons systems, belonging to 15 different platforms.
There has been a moderate 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 16, 2014, 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) 53262. [A RING DESIGNED TO BE MOUNTED ON A WHEEL RIM AND INSIDE A TIRE, PNEUMATIC (AS MODIFIED). IT IS USED TO ENABLE THE VEHICLE TO MAINTAIN MOTION AND BE SUPPORTED FOR A PERIOD OF TIME, AFTER THE TIRE IS DAMAGED. IT MAY INCLUDE MOUNTING HARDWARE.]. 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 2640015631421 does not contain precious metals.
This NSN is associated to Schedule B 8710000090: parts of armored fighting vehicles,motorized, whether or not fitted with weapons. The Schedule B End Use is listed as military trucks, armored vehicles, etc.. NAICS classification category 336992: military armored vehicle, tank, and tank component manufacturing.
This information was last updated on Aug 01, 2025.