National Stock Number
5310-01-518-1781
National Stock Number (NSN) 5310-01-518-1781, or NIIN 015181781, (nut spacer,plate) was assigned March 4, 2004 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 somewhat common among different platforms, belonging to 4 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 02, 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. 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 but does have other critical feature(s) 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 5310015181781 does not contain precious metals.
This information was last updated on Jul 01, 2025.