National Stock Number
5220-00-233-1569
National Stock Number (NSN) 5220-00-233-1569, or NIIN 002331569, (toolmaker''s flat) was assigned October 24, 1970 in the Federal Logistics Information System (FLIS). NIIN 002331569 was cancelled on April 14, 2001, 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) 18275. [A FLAT, HARDENED PIECE OF STEEL, HAVING MICROFINISHED PARALLEL SURFACES CAPABLE OF ADHERING TO EACH OTHER WHEN TWO OR MORE FLATS ARE FIRMLY PRESSED (WRUNG) TOGETHER. IT IS USED FOR INSPECTION AND LAYOUT OPERATIONS REQUIRING EXTREME ACCURACY. SEE ALSO OPTICAL FLAT.]. 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 5220002331569 contains an unknown precious metal.
This information was last updated on Apr 01, 2025.