National Stock Number
6540-01-566-2040
National Stock Number (NSN) 6540-01-566-2040, or NIIN 015662040, (lens measuring instrument,ophthalmic) was assigned August 25, 2008 in the Federal Logistics Information System (FLIS). NIIN 015662040 was cancelled on January 2, 2015, 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 3 manufacturer part numbers 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 26, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 14969. [A DEVICE FOR DETERMINING THE OPTICAL PROPERTIES OF A LENS, SUCH AS DIOPTRIC POWER, AXIS, AND ANGLE BETWEEN CYLINDERS. IT MAY HAVE A DEVICE FOR MARKING THE LENS. DOES NOT INCLUDE MEASURE, LENS, OPHTHALMIC.]. 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 6540015662040 does not contain precious metals.
This information was last updated on Aug 01, 2025.