National Stock Number
5310-01-657-9557
National Stock Number (NSN) 5310-01-657-9557, or NIIN 016579557, (nut spacer,plate) was assigned September 7, 2016 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Nov 01, 2016. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE5E817P0438. The total value of the awarded contracts has been US$ 1,389.57.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Oct 26, 2016, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 17667. [AN ITEM HAVING TWO FLAT BEARING SURFACES, CONFORMING TO THE SAME SHAPE AS THE BASE OF A NUT (1), PLAIN, PLATE AND NUT (1), SELF-LOCKING, PLATE. IT IS USED TO PROVIDE BETTER ALIGNMENT IN ASSEMBLY.]. 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 5310016579557 contains an unknown precious metal.
This information was last updated on Jun 01, 2025.