National Stock Number
2990-00-459-3111
National Stock Number (NSN) 2990-00-459-3111, or NIIN 004593111, (guard,muffler-exhaust pipe) was assigned August 12, 1970 in the Federal Logistics Information System (FLIS). NIIN 004593111 was cancelled on April 30, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 one supplier. Today, there are no suppliers 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) 32791. [INC 32791 CANCELLED/REPLACED BY ,INC 51297, FIIG A520E0, APP-KEY ,INC 51296, FIIG A520E0, APP-KEY , ON 022495 A METALLIC ITEM, USUALLY PERFORATED AND/OR MESHED, SPECIFICALLY DESIGNED TO PROTECT AN ENGINE MUFFLER AND/OR EXHAUST PIPE. IT PREVENTS PHYSICAL DAMAGE TO EXPOSED EXHAUST SYSTEM PARTS AND PREVENTS POSSIBLE INJURY TO PERSONNEL WHILE THE UNIT IS OPERATING AND IMMEDIATELY AFTER OPERATION.]. 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 2990004593111 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.