National Stock Number
4520-01-331-5137
National Stock Number (NSN) 4520-01-331-5137, or NIIN 013315137, (unit heater,air circulating,steam-hot water) was assigned December 20, 1990 in the Federal Logistics Information System (FLIS). NIIN 013315137 was cancelled on May 1, 2010, 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) 04874. [A HEATING DEVICE WHICH IS CONNECTED TO A CENTRAL SOURCE OF HOT WATER OR STEAM, FOR THE PURPOSE OF DISTRIBUTING HEAT, BY MEANS OF A MOTOR-DRIVEN FAN, THROUGHOUT A ROOM OR BUILDING. BY INTRODUCING OUTSIDE AIR, IT MAY ALSO BE UTILIZED FOR VENTILATING PURPOSES OR A COMBINATION OF HEATING AND VENTILATING.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520013315137 contains an unknown precious metal.
This information was last updated on Jun 01, 2025.