National Stock Number (NSN) 5340-01-121-9819, or NIIN 011219819, (insert,self-locking) was assigned November 11, 1981 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5340011783087.
There are 14 manufacturer part numbers associated with this NSN. 11 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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 7 contracts issued for this part number, with 7 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7L322P6273, SPE5EK19V4795, SPE5EK17V2510, SPE5E116V0901, SPM5EK14M0024. The total value of the awarded contracts has been US$ 9,212.02.
This NSN is fairly common among different weapons systems, belonging to 16 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 1,527. 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) 31470. [A NONMETALLIC UNTHREADED ITEM GENERALLY ROUND IN CROSS-SECTIONAL SHAPE WHICH, WHEN PLACED ON/IN A MACHINED-OUT PORTION OF THE THREADS OF A SCREW OR BOLT, OR INSERTED INTO THE MACHINED-OUT PORTION OF THE THREADS OF A NUT, LOCKS THE ITEM, TO WHICH IT IS FIXED, TO THE ATTACHED MATING MEMBER AND PREVENTS LOOSENING DURING EXCESSIVE VIBRATION. EXCLUDES BOLT, SELF-LOCKING; NUT, SELF-LOCKING (AS MODIFIED); SCREW, SELF-LOCKING; AND INSERT, SCREW THREAD.]. 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 5340011219819 does not contain precious metals.
This information was last updated on Aug 01, 2025.