National Stock Number
5920-00-404-9278
National Stock Number (NSN) 5920-00-404-9278, or NIIN 004049278, (fuse link,thermal) was assigned March 31, 1971 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 10, 2014, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 20348. [A REPLACEABLE, PROTECTIVE, CURRENT CARRYING ELEMENT FOR HEATERS, HEAT DUCTS, AND LIKE ITEMS. IT IS DESIGNED WITH FUSIBLE MATERIAL WHICH WILL MELT AT KNOWN AMBIENT TEMPERATURES AND DISCONNECT THE ITEM FROM ITS POWER SOURCE. SEE ALSO LINK, FUSIBLE, FIRE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5920004049278 contains an unknown precious metal.
This NSN is associated to Schedule B 8536100040: fuses, except glass cartridge, for a voltage not exceeding 1,000 v. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335313: switchgear and switchboard apparatus manufacturing.
This information was last updated on Aug 01, 2025.