National Stock Number
2990-12-338-1960
National Stock Number (NSN) 2990-12-338-1960, or NIIN 123381960, (air cleaner,crankcase,emission control) 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 2 suppliers. 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 somewhat common among different platforms, belonging to 4 different weapons systems.
This NSN is assigned to Item Name Code (INC) 36488. [A DEVICE DESIGNED AS PART OF THE VENTILATION SYSTEM TO ALLOW INCOMING AIR TO MIX WITH EXCESS FUMES AND VAPOR AND REBURNED IN THE COMBUSTION CHAMBER. ITEM HAS INLET FOR AN INTAKE HOSE.].
This information was last updated on Jan 14, 2026.