National Stock Number
2990-21-910-7250
National Stock Number (NSN) 2990-21-910-7250, or NIIN 219107250, (exhaust system,engine) has an unknown assigned date. This NSN replaces 1 stock number, 2990219143280.
There are 2 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 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) 37120. [AN ASSEMBLY SPECIFICALLY DESIGNED TO EXHAUST AND/OR TO MUFFLE THE SOUND OF GASES PRODUCED BY AN ENGINE. THE ITEM MAY INCLUDE MOUNTING HARDWARE AND SEALS.].
This information was last updated on Jan 30, 2026.