National Stock Number
4820-00-403-1289
National Stock Number (NSN) 4820-00-403-1289, or NIIN 004031289, (retainer,disk,valve) was assigned June 15, 1970 in the Federal Logistics Information System (FLIS). NIIN 004031289 was cancelled on September 2, 2010, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4730015085467. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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, there are no suppliers 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) 35917. [AN ITEM OF VARIOUS SHAPES AND CROSS-SECTIONS, THAT MAY BE FLANGED AND THAT IS DESIGNED TO FIT OVER A VALVE DISK, ALLOWING PROPER POSITION OF DISK-TO-VALVE SEAT WITHIN A VALVE BODY.]. 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 4820004031289 does not contain precious metals.
This information was last updated on Aug 01, 2025.