National Stock Number
4820-01-233-9078
National Stock Number (NSN) 4820-01-233-9078, or NIIN 012339078, (retainer,disk,valve) was assigned June 5, 1986 in the Federal Logistics Information System (FLIS). NIIN 012339078 was cancelled on April 2, 2009, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820013040452. 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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 4820012339078 does not contain precious metals.
This information was last updated on Jul 01, 2025.