National Stock Number
6540-00-935-1146
National Stock Number (NSN) 6540-00-935-1146, or NIIN 009351146, (lap,ophthalmic,cylindrical) was assigned May 23, 1967 in the Federal Logistics Information System (FLIS). NIIN 009351146 was cancelled on February 2, 2014, 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 are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 01, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 19985. [A TOOL WITH A KNOWN SURFACE DIOPTER CURVATURE USED IN THE GRINDING OR POLISHING OF LENS BLANKS TO A PRESCRIBED SURFACE HAVING UNEQUAL RADII OF CURVATURE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6540009351146 does not contain precious metals.
This information was last updated on Aug 01, 2025.