National Stock Number (NSN) 5961-00-543-0490, or NIIN 005430490, (semiconductor device,diode) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 6 stock numbers. Five of the National Stock Numbers that it replaces are: 5961004974053, 5961004005374, 5961010056327, 5961009994535, 5961000529922.
There are 14 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 13 suppliers. Today, 8 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, with the most recent procurement date of Oct 26, 2009. 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: SPM7M510M0504, SPM7M510M0504, SPM7M510M0504. The total value of the awarded contracts has been US$ 7,240.78.
This NSN is very common among different weapons systems, belonging to 44 different platforms.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 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.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 20589. [A TWO ELECTRODE SEMICONDUCTOR DEVICE HAVING AN ASYMMETRICAL VOLTAGE - CURRENT CHARACTERISTIC. MAY OR MAY NOT INCLUDE MOUNTING HARDWARE AND/OR HEATSINK. EXCLUDES:LIGHT EMITTING DIODE AND SEMICONDUCTOR DEVICE,PHOTO. FOR ITEMS CONTAINING MATERIAL SUCH AS SELENIUM AND COPPER OXIDE, SEE RECIFIER, METALLIC.]. 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 5961005430490 does not contain precious metals.
This NSN is associated to Schedule B 8541100070: diodes, other than photosensitve or led, with a maximum current of 0.5 a or less. The Schedule B End Use is listed as semiconductors. NAICS classification category 334413: semiconductor and related device manufacturing.
This information was last updated on Aug 01, 2025.