National Stock Number
5210-00-516-4076
National Stock Number (NSN) 5210-00-516-4076, or NIIN 005164076, (optical flat set) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 005164076 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." 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) 18276. [TWO OR MORE OPTICAL FLATS. EXCLUDES:OPTICAL PARALLELS.]. 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 5210005164076 does not contain precious metals.
This information was last updated on Aug 01, 2025.