National Stock Number
6650-01-333-1771
National Stock Number (NSN) 6650-01-333-1771, or NIIN 013331771, (mirror assembly and mounting bracket,optical microscope) was assigned January 25, 1991 in the Federal Logistics Information System (FLIS). NIIN 013331771 was cancelled on June 2, 2005, 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, 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) 17263. [AN ITEM CONSISTING OF A PLAIN AND A CONCAVE MIRROR MOUNTED BACK TO BACK IN A MOUNTING FORK IN SWIVEL JOINTS WHICH PERMIT 360 DEGREE ROTATION ABOUT THE AXIS BETWEEN THE POINTS. THE CYLINDRICAL BASE OF THE FORK FITS INTO A RECEPTACLE IN THE MICROSCOPE.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6650013331771 does not contain precious metals.
This information was last updated on Aug 01, 2025.