National Stock Number
6540-00-528-2843
National Stock Number (NSN) 6540-00-528-2843, or NIIN 005282843, (lens blank,ophthalmic,bifocal,semifinished) was assigned September 1, 1974 in the Federal Logistics Information System (FLIS). NIIN 005282843 was cancelled on December 2, 1996, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 6540013143718.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 30300. [A TRANSPARENT OPTICAL ELEMENT CONSISTING OF A MAJOR BLANK AND A BIFOCAL SEGMENT. THE BLANK AND SEGMENT HAVE BEEN PRESSED IN A GLASS MOLD TO AN APPROXIMATE SIZE AND SHAPE, AND ARE GROUND AND POLISHED TO A FINISHED DIOPTER CURVATURE ON ONE SURFACE ONLY.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6540005282843 does not contain precious metals.
This information was last updated on Jul 01, 2025.