National Stock Number
6640-00-377-9381
National Stock Number (NSN) 6640-00-377-9381, or NIIN 003779381, (flask,dewar) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 003779381 was cancelled on September 2, 2006, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, there are no suppliers listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 18825. [A VESSEL, HAVING DOUBLE WALLS INSULATED BY MEANS OF A VACUUM AND USED FOR RETAINING THE TEMPERATURE OF THE CONTENTS WITH MINIMUM HEAT LOSSES. MAY ALSO BE UNEVACUATED.]. 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 6640003779381 does not contain precious metals.
This information was last updated on Jul 01, 2025.