National Stock Number
4460-01-643-1923
National Stock Number (NSN) 4460-01-643-1923, or NIIN 016431923, (filter unit,air purification sys) was assigned March 24, 2015 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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) 36527. [A DEVICE DESIGNED TO REMOVE OIL AND DUST PARTICLES FROM COMPRESSED AIR GENERATED BY A COMPRESSOR AND TO DRY THE AIR BY MAKING USE OF THE REFRIGERATION PRINCIPLE. IT IS AN INTEGRAL PART OF A COMPRESSED-AIR SUPPLY STATION AND INSTALLED BETWEEN COMPRESSOR AND FILLING OR DISPENSING TANK. THE ITEM MAY INCLUDE CONTROL UNITS DESIGNED TO MONITOR AND ANALYZE THE OPERATING DATA AND TO REGULATE ON AND OFF SWITCHING OF THE STATION BY MEANS OF PREDETERMINED PROGRAMS.]. 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 4460016431923 does not contain precious metals.
This information was last updated on Aug 01, 2025.