National Stock Number
2990-01-607-2781
National Stock Number (NSN) 2990-01-607-2781, or NIIN 016072781, (cap assembly,protective,muffler-) was assigned June 7, 2012 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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, only one supplier is deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 7 contracts issued for this part number, with 7 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7L525V0309, SPE7L125V2368, SPE7L125V2368, SPE7L125V2368, SPE7L024V6718. The total value of the awarded contracts has been US$ 1,557.82.
This NSN is unique to one weapons system.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 1,826. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 22, 2018, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 61446. [AN ITEM DESIGNED TO FIT OVER THE OPENING OF AN ENGINE EXHAUST PIPE OR MUFFLER TO PREVENT THE ENTRANCE OF RAIN OR FOREIGN MATTER INTO THE MANIFOLD SECTION OF A RECIPROCATING ENGINE WHILE NOT IN USE. IT IS AUTOMATICALLY OPENED WHEN THE ENGINE IS STARTED BY PRESSURE EXERTED FROM THE EXHAUST SYSTEM. IT IS EQUIPPED WITH A HINGING ACTION AND MAY OR MAY NOT HAVE A COUNTER WEIGHT. EXCLUDES CAP, PROTECTIVE, DUST AND MOISTURE SEAL.]. 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 2990016072781 does not contain precious metals.
This NSN is associated to Schedule B 8412909080: parts of engines and motors, nesoi. The Schedule B End Use is listed as industrial engines. NAICS classification category 333111: farm machinery and equipment manufacturing.
This information was last updated on Aug 01, 2025.