National Stock Number
4820-01-253-9602
National Stock Number (NSN) 4820-01-253-9602, or NIIN 012539602, (disk,valve) was assigned April 28, 1987 in the Federal Logistics Information System (FLIS). NIIN 012539602 was cancelled on May 2, 1995, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820013835271. This NSN does not replace any other NSNs.
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) 35224. [AN ITEM OF VARIOUS SHAPES (USUALLY CIRCULAR, CONICAL, CYLINDRICAL, OR RECTANGULAR) USED TO PREVENT OR REGULATE THE FLOW OF LIQUIDS OR GASES THROUGH THE VALVE. MAY INCLUDE A RETAINER, SCREW, HOLDER, AND THE LIKE.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820012539602 does not contain precious metals.
This information was last updated on Jul 01, 2025.