National Stock Number
2840-00-168-6560
National Stock Number (NSN) 2840-00-168-6560, or NIIN 001686560, (seal,air,aircraft gas turbine engine) was assigned November 24, 1971 in the Federal Logistics Information System (FLIS). NIIN 001686560 was cancelled on January 27, 1998, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 2840010753642. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 50595. [A RIGID METALLIC ITEM, GENERALLY CIRCULAR. IT MAY BE FORMED OF SEGMENTED ARCS. IT IS DESIGNED TO PREVENT LEAKAGE OF AIR IN AN ENGINE, GAS TURBINE, AIRCRAFT. IT MAY BE OF VARIOUS CROSS-SECTIONAL SHAPES. IT MAY HAVE MOUNTING FACILITIES. IT MAY ACT AS A SPACER BUT ITS PRIMARY FUNCTION IS AS AN AIR SEAL.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2840001686560 does not contain precious metals.
This information was last updated on Jul 01, 2025.