National Stock Number
5340-00-053-1654
National Stock Number (NSN) 5340-00-053-1654, or NIIN 000531654, (seat,helical compression spring) was assigned May 25, 1967 in the Federal Logistics Information System (FLIS). NIIN 000531654 was cancelled on December 18, 2018, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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, there are no suppliers that are 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) 24328. [A CIRCULAR ITEM, USUALLY HAVING A FLAT OR GROOVED FLANGE, BOSS(ES), AND/OR COUNTERBORE, DESIGNED TO ACCOMMODATE THE END OF THE SPRING. IT IS USED TO POSITION THE SPRING BUT DOES NOT ENCASE THE SPRING OR RESTRAIN LATERAL MOTION. IT MAY BE USED IN CONJUNCTION WITH A RETAINER,HELICAL COMPRESSION SPRING. EXCLUDES:WASHER (AS MODIFIED), SEAT,BALL SOCKET, AND HOLDER,SPRING. SEE ALSO ROTOR,ENGINE POPPET VALVE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5340000531654 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.