National Stock Number
2990-01-251-1747
National Stock Number (NSN) 2990-01-251-1747, or NIIN 012511747, (guard,muffler-exhaust pipe) was assigned March 14, 1987 in the Federal Logistics Information System (FLIS). NIIN 012511747 was cancelled on August 22, 2002, 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, 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) 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 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 2990012511747 does not contain precious metals.
This information was last updated on Jul 01, 2025.