National Stock Number
5220-00-293-1649
National Stock Number (NSN) 5220-00-293-1649, or NIIN 002931649, (square,surface plate) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers 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 10, 2004, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 05200. [A PRECISION TOOL DESIGNED FOR USE WITH SURFACE PLATES FOR INSPECTION OR LAYOUT OPERATIONS AND TO PROVIDE A SIMPLE AND EFFECTIVE MEANS OF OBTAINING A REFERENCE LINE CONTACTING THE WORK IN ANY PLANE. IT CONSISTS OF PRECISION GROUND ENDS PARALLEL TO EACH OTHER AND SQUARE WITH THE LONGITUDINAL AXIS. THE WORKING SURFACES MAY BE CONTINUOUS OR BROKEN BY CONCAVE DIVISIONS EQUALLY SPACED TO DEVELOP A NARROWER WORKING SURFACE.]. 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 5220002931649 does not contain precious metals.
This NSN is associated to Schedule B 9017208060: drawing, marking-out or mathematical calculating instruments, nesoi. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334519: other measuring and controlling device manufacturing.
This information was last updated on Jun 01, 2025.