National Stock Number
4520-01-053-8920
National Stock Number (NSN) 4520-01-053-8920, or NIIN 010538920, (humidifier,portable) was assigned January 13, 1978 in the Federal Logistics Information System (FLIS). NIIN 010538920 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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, 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 assigned to Item Name Code (INC) 31980. [AN ITEM WHICH CONVERTS WATER INTO FINE COOL VAPORS BY MECHANICAL MEANS. IT MAY BE USED IN A "SICK ROOM" WITH OR WITHOUT MEDICATION, OR ANY ENCLOSED AREA FOR THE PURPOSE OF INCREASING ITS RELATIVE HUMIDITY. FOR ITEMS CONVERTING WATER INTO HOT VAPOR (STEAM) BY MEANS OF HEAT, SEE VAPORIZER, MEDICINAL.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520010538920 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.