National Stock Number
5920-25-129-1183
National Stock Number (NSN) 5920-25-129-1183, or NIIN 251291183, (fuse cutout,primary expulsion) has an unknown assigned date. This NSN does not replace any other NSNs.
There is only one manufacturer part number 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.
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 information was last updated on Feb 06, 2026.