National Stock Number
5340-01-040-5953
National Stock Number (NSN) 5340-01-040-5953, or NIIN 010405953, (plug assembly,sealing) was assigned May 9, 1977 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 5340011367692, 5340011249276, 5340000760350.
There are 11 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 10 suppliers. Today, 10 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 6 suppliers are 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, with the most recent procurement date of May 07, 2019. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE5EK19V4375, SPE5EK19V1923. The total value of the awarded contracts has been US$ 3,441.00.
This NSN is very common among different weapons systems, belonging to 55 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 Oct 23, 2018, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 62028. [AN ITEM CONSISTING OF A CYLINDRICAL PLUG WHICH MAY BE GROOVED AND A DRIVING ELEMENT SUCH AS A TAPERED DRIVE PIN, A BALL OR THE LIKE WHICH WIDENS THE PLUG. THE PLUG IS DESIGNED TO CLOSE A HOLE IN AN ITEM AND THUS PREVENT LIQUID FROM LEAKING OUT.]. 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 5340010405953 does not contain precious metals.
This NSN is associated to Schedule B 8207400000: tools for tapping or threading, parts thereof, of base metal. The Schedule B End Use is listed as photo, service industry machinery. NAICS classification category 333515: cutting tool and machine tool accessory manufacturing.
This information was last updated on Aug 01, 2025.