National Stock Number
5340-00-499-5021
National Stock Number (NSN) 5340-00-499-5021, or NIIN 004995021, (locking plate,nut and bolt) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 2815006098857.
There is only one manufacturer part number associated with this NSN. One 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 15, 2008, 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 needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 22247. [A RELATIVELY THIN METAL ITEM OF VARIOUS SHAPES, HAVING TWO OR MORE BOLT HOLES AND LOCKING EARS OR TABS. THE ITEM IS DESIGNED TO BE INSERTED ON THE BOLTS AND THE EARS OR TABS BENT AGAINST THE WRENCHING FLAT(S) OF THE BOLT HEAD OR NUT TO RESTRICT LOOSENING OF THE BOLT OR NUT. THE LOCKING EARS OR TABS MAY BE PREBENT. SEE ALSO RETAINER, NUT AND BOLT.]. 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 5340004995021 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.