National Stock Number
6640-00-494-3890
National Stock Number (NSN) 6640-00-494-3890, or NIIN 004943890, (slide,microscope) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 004943890 was cancelled on July 2, 2011, 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 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.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Mar 04, 2011. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM2DH11M1430. The total value of the awarded contracts has been US$ 107.63.
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) 17207. [A GLASS OR PLASTIC MATERIAL ITEM, RECTANGULAR AND THIN ON WHICH A SPECIMEN IS PLACED FOR EXAMINATION UNDER A MICROSCOPE (AS MODIFIED). IT MAY BE FLAT, CONCAVE, MARKED WITH A GRID, HAVE ROUNDED CORNERS, RECESSES, AND THE LIKE. EXCLUDES:CHAMBER,COUNTING,BLOOD CELLS.]. 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 6640004943890 does not contain precious metals.
This information was last updated on Jul 01, 2025.