National Stock Number
6540-01-257-1695
National Stock Number (NSN) 6540-01-257-1695, or NIIN 012571695, (heat treating unit,ophthalmic lens) was assigned June 13, 1987 in the Federal Logistics Information System (FLIS). NIIN 012571695 was cancelled on March 2, 1996, 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.
This NSN is assigned to Item Name Code (INC) 28380. [INC 28380 CANCELLED ON 052511~AN ITEM USED IN OPHTHALMIC PRESCRIPTION LABORATORIES FOR HARDENING AND IMPROVING THE IMPACT RESISTANCE OF LENSES.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6540012571695 does not contain precious metals.
This information was last updated on Jul 01, 2025.