National Stock Number
5310-00-045-4007
National Stock Number (NSN) 5310-00-045-4007, or NIIN 000454007, (washer,lock) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 31 stock numbers. Five of the National Stock Numbers that it replaces are: 5310000257665, 5310008206661, 5310002617592, 5310012181338, 5310010885357.
There are 61 manufacturer part numbers associated with this NSN. 21 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 49 suppliers. Today, 41 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 22 suppliers are deemed design controlled or valid supply parts. ISO Group has built a very strong supply chain for this NSN. We have direct relationships with 32 sources of supply.
This part number has not been procured by the US Government in over 5 years.
This NSN is very common among different weapons systems, belonging to 460 different platforms.
This national stock number is in high demand. Globally, demand for this NSN has originated from 16 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 14218. [A WASHER, USUALLY ROUND, WITH A CENTRALLY-LOCATED HOLE. ITS EDGES AND TWO BEARING SURFACES ARE DESIGNED IN SUCH A WAY THAT APPLIED PRESSURE BRINGS INTO PLAY THE SPRING TENSION AND/OR FRICTIONAL LOCKING PRINCIPLE THAT MATERIALLY RESISTS ANY TENDENCY TOWARD TURNING. IT MAY BE MADE OF ONE OR TWO PIECES.]. 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 5310000454007 does not contain precious metals.
This information was last updated on Aug 01, 2025.