National Stock Number
2990-00-790-4943
National Stock Number (NSN) 2990-00-790-4943, or NIIN 007904943, (muffler,exhaust) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). NIIN 007904943 was cancelled on September 2, 2003, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 2990010368882.
There are 12 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 13 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 6 suppliers 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) 10849. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2990007904943 does not contain precious metals.
This information was last updated on Aug 01, 2025.