National Stock Number
2840-00-548-4618
National Stock Number (NSN) 2840-00-548-4618, or NIIN 005484618, (seal ring,labyrinth,aircraft gas turbine engine) was assigned October 15, 1974 in the Federal Logistics Information System (FLIS). NIIN 005484618 was cancelled on April 2, 2008, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those 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, 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.
This NSN is assigned to Item Name Code (INC) 50599. [AN ITEM OF SINGLE PIECE METAL KNIFE EDGED CONSTRUCTION USED TO FORM A TIGHT AIR SEAL. IT IS MOUNTED ON A ROTATING PORTION OF THE ENGINE. IT MAY BE USED IN CONJUNCTION WITH OTHER SEALS TO PREVENT OIL SEEPAGE.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 2840005484618 does not contain precious metals.
This information was last updated on Aug 01, 2025.