National Stock Number
5920-00-250-4731
National Stock Number (NSN) 5920-00-250-4731, or NIIN 002504731, (fuse cutout,primary expulsion) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 5 stock numbers: 5920002957038, 5920009710925, 5975009633798, 5920006699413, 5920005372001.
There are 7 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 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.
This NSN is unique to one weapons system.
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 Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 05385. [A DEVICE DESIGNED TO PROTECT HEAVY DUTY ELECTRICAL POWER AND LIGHTING PRIMARY CIRCUITS AND EQUIPMENT AGAINST EXCESSIVE ELECTRICAL CURRENTS BY AUTOMATICALLY DE-ENERGIZING THE AFFECTED SECTION OF THE CIRCUIT. CONSISTS OF A FUSIBLE ELEMENT AND A MECHANISM FOR QUICK DISCONNECT OF CIRCUIT WHEN FUSE IS BLOWN. MAY BE DESIGNED FOR AUTOMATIC RE-ENERGIZING AFTER A PREDETERMINED TIME DELAY.]. 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 5920002504731 contains an unknown precious metal.
This NSN is associated to Schedule B 8535100020: fuses in circuits of 2,300 v or more. 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 Jul 01, 2025.