National Stock Number (NSN) 2840-01-666-6551, or NIIN 016666551, (plug,turbine case,aircraft gas t) was assigned September 15, 2017 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 not been procured by the US Government in over 5 years, with the most recent procurement date of Aug 23, 2018. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A718PE176. The total value of the awarded contracts has been US$ 2,053.40.
This NSN is unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 20, 2019, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. The rights to use the data needed to purchase this part from additional sources are not owned by the Government and cannot be purchased. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 52959. [A USUALLY ROUND ITEM OF VARIOUS CROSS SECTIONS DESIGNED FOR TEMPORARY INSTALLATION INTO A HOLE IN A CASE, TURBINE, AIRCRAFT GAS TURBINE ENGINE FOR THE PURPOSE OF PREVENTING AIR FROM ESCAPING DURING ENGINE OPERATION. WHEN REMOVED, THE HOLE IS FOR INSERTING INSPECTION PROBES, BORESCOPES AND THE LIKE. IT MAY BE GROOVED OR TAPERED FOR INSTALLATION AND REMOVAL. IT MAY INCLUDE SPACERS, SPRINGS, RIVETS AND THE LIKE.]. 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 2840016666551 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 Jul 01, 2025.