National Stock Number
4420-21-914-5273
National Stock Number (NSN) 4420-21-914-5273, or NIIN 219145273, (cooler,fluid,industrial) has an unknown assigned date. This NSN does not replace any other NSNs.
There are 4 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 4 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 unique to one weapons system.
This NSN is assigned to Item Name Code (INC) 04041. [AN APPARATUS DESIGNED TO LOWER THE TEMPERATURE OF A FLUID BY BRINGING IT INTO PROXIMITY WITH ANOTHER FLUID OF LOWER TEMPERATURE SO THAT HEAT TRANSFER IS EFFECTED BY CONDUCTION THROUGH THE WALLS OF SEPARATING CHAMBERS. EXCLUDES:AIR CONDITIONING EQUIPMENT, REFRIGERATION EQUIPMENT, AND RADIATORS.].
This information was last updated on Jul 30, 2025.