National Stock Number
2990-01-123-0341
National Stock Number (NSN) 2990-01-123-0341, or NIIN 011230341, (muffler,exhaust) was assigned December 4, 1981 in the Federal Logistics Information System (FLIS). NIIN 011230341 was cancelled on February 2, 2009, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 6 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 10849. 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 2990011230341 does not contain precious metals.
This information was last updated on Aug 01, 2025.