National Stock Number
5310-00-264-0170
National Stock Number (NSN) 5310-00-264-0170, or NIIN 002640170, (washer,slotted) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 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, 2 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 15936. [A WASHER, ROUND IN SHAPE, AND HAVING A CENTRALLY LOCATED HOLE. ITS TWO FLAT PARALLEL BEARING SURFACES ARE DIVIDED OR CUT ALONG THE RADIUS, LEAVING A CLEFT, FISSURE, OR CUTAWAY PORTION ACROSS THE RIM WHICH EXTENDS FROM THE OUTER CIRCUMFERENCE TO THE WASHER HOLE AND IS ALWAYS AS LARGE AS, OR LARGER THAN THE DIAMETER OF THE HOLE.]. 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 5310002640170 contains an unknown precious metal.
This NSN is associated to Schedule B 7318220000: washers other than lock washers, iron or steel. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.
This information was last updated on Jul 01, 2025.