National Stock Number (NSN) 2840-01-343-9875, or NIIN 013439875, (duct,exhaust,aircraft gas turbin) was assigned August 20, 1991 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over a year. There have been 24 contracts issued for this part number, with 24 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A724F5843, SPE4A724F5843, SPE4A723F097H, SPE4A723F097H, SPE4A723F046Y. The total value of the awarded contracts has been US$ 2,820,386.00.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
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$ 332,825. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 14, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 50343. [A CYLINDRICAL SHAPED ITEM DESIGNED TO DIRECT THE HOT GASES THAT ARE DISCHARGED FROM AN ENGINE, GAS TURBINE, AIRCRAFT. IT IS THE OUTER PORTION OF A DUCT AND CONE, EXHAUST, AIRCRAFT GAS TURBINE ENGINE. IT MAY BE ATTACHED DIRECTLY TO THE ENGINE.]. 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 2840013439875 does not contain precious metals.
This NSN is associated to Schedule B 8411997050: parts of gas turbine aircraft engines, other than for use in civil aircraft. The Schedule B End Use is listed as engines and turbines for military aircraft. NAICS classification category 336412: aircraft engine and engine parts manufacturing.
This information was last updated on Aug 01, 2025.