National Stock Number
4820-00-658-4838
National Stock Number (NSN) 4820-00-658-4838, or NIIN 006584838, (seat,valve) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 006584838 was cancelled on December 2, 1997, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 1650003889047.
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) 22113. [A REPLACEABLE ITEM DESIGNED TO PROVIDE A STATIONARY SEATING SURFACE FOR A MATING, MOVEABLE ITEM SUCH AS A VALVE DISK OR THE LIKE. THE BODY MAY HAVE A FLANGE OF VARIOUS SHAPES. FOR DIESEL AND GASOLINE RECIPROCATING ENGINES, SEE INSERT, ENGINE VALVE SEAT.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820006584838 does not contain precious metals.
This information was last updated on Jul 01, 2025.