National Stock Number
6640-00-492-5621
National Stock Number (NSN) 6640-00-492-5621, or NIIN 004925621, (jar,bell) was assigned February 11, 1970 in the Federal Logistics Information System (FLIS). NIIN 004925621 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 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, 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) 18781. [A BELL-SHAPED ITEM WITH A FLANGED BOTTOM DESIGNED TO PROTECT LABORATORY APPARATUS AND INSTRUMENTS FROM DUST AND FUMES. IT MAY HAVE A TOP OPENING OR SIDE TUBULATION TO PERMIT VACUUM FILTRATION IN MICROCHEMICAL PROCEDURES.]. This item does not have a nuclear hardened feature but does have other critical feature(s) 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 6640004925621 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.