National Stock Number
5340-01-640-6891
National Stock Number (NSN) 5340-01-640-6891, or NIIN 016406891, (cover,protective,dust and moistu) was assigned December 18, 2014 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 one supplier. Today, one supplier is listed as an Active supplier 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.
This NSN is assigned to Item Name Code (INC) 49602. [A COVER OF VARIOUS SHAPES, SIZES AND MATERIALS, SPECIFICALLY DESIGNED TO FIT OVER THE OPENING(S) OF MECHANICAL CONNECTIONS SUCH AS DRIVE LINES, AIR AND FLUID DUCTS AND THE LIKE, OF VARIOUS EQUIPMENTS TO PROVIDE MECHANICAL PROTECTION AND/OR PREVENT THE ENTRANCE OF FOREIGN MATTER DURING SHIPPING, STORAGE OR MAINTENANCE. THE COVER IS NOT AN INTEGRAL PART OF THE EQUIPMENT WHEN THE EQUIPMENT IS INSTALLED IN THE END ITEM. IT IS DESIGNED TO BE ATTACHED BY MEANS OF BOLT HOLES, SLOTS, MOUNTING EARS, TABS AND THE LIKE. SEE ALSO CAP (1), PROTECTIVE, DUST AND MOISTURE SEAL. EXCLUDES COVER, ACCESS.]. 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 5340016406891 does not contain precious metals.
This NSN is associated to Schedule B 3926904500: gaskets,washers & other seals. The Schedule B End Use is listed as other industrial supplies. NAICS classification category 339991: gasket, packing, and sealing device manufacturing.
This information was last updated on Aug 01, 2025.