National Stock Number
5920-12-188-9721
National Stock Number (NSN) 5920-12-188-9721, or NIIN 121889721, (arrester,electrical surge) has an unknown assigned date. NIIN 121889721 was cancelled on January 2, 2013, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 11 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 4 suppliers are listed as Active suppliers 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) 00381. [A CIRCUIT-PROTECTING DEVICE WHICH PROVIDES A DISCHARGE PATH FOR ABNORMAL SURGES OF HIGH POTENTIAL WHILE CONSUMING LITTLE OR NO POWER AT NORMAL OPERATING VOLTAGE. EXCLUDES:ITEMS WHICH ABSORB CONTINUOUSLY RECURRING CYCLIC PULSES. FOR RESISTORS WHICH ARE SENSITIVE TO VOLTAGE CHANGES OR USED AS ELEMENTS IN SURGE ARRESTERS, SEE RESISTOR, VOLTAGE SENSITIVE. SEE ALSO ABSORBER, OVERVOLTAGE; AND CUTOUT DISK, PROTECTIVE.].
This information was last updated on Nov 24, 2025.