National Stock Number
4520-01-721-0722
National Stock Number (NSN) 4520-01-721-0722, or NIIN 017210722, (unit heater,air circulating,stea) was assigned May 22, 2024 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4520017210722 does not contain precious metals.
This NSN is associated to Schedule B 7322900000: air heaters and hot air distributors, not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel. The Schedule B End Use is listed as household appliances. NAICS classification category 333415: air-conditioning and warm air heating equipment and commercial and industrial refrigeration equipment manufacturing.
This information was last updated on May 01, 2025.