National Stock Number
6640-00-063-8378
National Stock Number (NSN) 6640-00-063-8378, or NIIN 000638378, (holder,filtering crucible) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 000638378 was cancelled on December 16, 2017, with a cancelled status of "Item is Cancelled - Inactive." 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.
This NSN is assigned to Item Name Code (INC) 18870. [A DEVICE SPECIFICALLY DESIGNED TO MECHANICALLY ACCOMMODATE, SUSPEND AND POSITION A FILTERING CRUCIBLE WITHIN THE BELL OF A FUNNEL OR THE MOUTH OF A FLASK.]. 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 6640000638378 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.