National Stock Number
1660-21-921-4122
National Stock Number (NSN) 1660-21-921-4122, or NIIN 219214122, (sensor,gaseous mass flow,concentrator,oxygen,aircr) has an unknown assigned date. 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, 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 assigned to Item Name Code (INC) 52897. [AN ITEM DESIGNED TO MEASURE THE NUMBER OF MOLECULES, THE FILTERED, LOPED, AND AMBIANT GASEOUS MIXTURE PRESSURE. THESE INFORMATIONS ARE PROCESSED BY AN ELECTRONIC SYSTEM WHICH CONTROLS THE ELUTION VALVE OPENING.].
This information was last updated on Aug 06, 2025.