National Stock Number
2990-00-173-1923
National Stock Number (NSN) 2990-00-173-1923, or NIIN 001731923, (muffler,exhaust) was assigned November 26, 1971 in the Federal Logistics Information System (FLIS). NIIN 001731923 was cancelled on November 28, 2001, 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, 2990001324694.
There are no manufacturer part numbers associated to 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 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 2990001731923 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.