National Stock Number
5310-01-233-8691
National Stock Number (NSN) 5310-01-233-8691, or NIIN 012338691, (washer,panel fastener screw) was assigned June 4, 1986 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 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 Apr 02, 1991, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 19666. [A WASHER, ROUND IN SHAPE, AND HAVING A CENTRALLY LOCATED HOLE. THE INSIDE EDGE IS NOTCHED TO FACILITATE INSTALLATION OVER THE THREADS OF A SCREW, PANEL FASTENER AND IS DESIGNED TO BE FLATTENED TO RETAIN THE FASTENER TO A PANEL.]. This item has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5310012338691 does not contain precious metals.
This information was last updated on Jul 01, 2025.