National Stock Number
5210-01-521-3853
National Stock Number (NSN) 5210-01-521-3853, or NIIN 015213853, (gage block set) was assigned June 21, 2004 in the Federal Logistics Information System (FLIS). NIIN 015213853 was cancelled on April 18, 2020, 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 is only one manufacturer part number 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, there are no suppliers that are 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 Dec 16, 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. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 05924. [A GROUP OF HARDENED METALLIC BLOCKS WITH PARALLEL SURFACES SUPERFINISHED FLAT TO PERMIT WRINGING TOGETHER. THEY MAY BE IN VARIOUS SIZES ACCORDING TO REQUIREMENTS. TOLERANCES ARE HELD SO THAT ACCUMULATED ERROR IS VERY SMALL. USED IN SET-UP AND INSPECTION OF PRECISION WORK.]. 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 5210015213853 does not contain precious metals.
This information was last updated on Aug 01, 2025.