National Stock Number
4820-01-187-4423
National Stock Number (NSN) 4820-01-187-4423, or NIIN 011874423, (disk,valve) was assigned August 22, 1984 in the Federal Logistics Information System (FLIS). NIIN 011874423 was cancelled on March 2, 1996, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820012040722. 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 4820011874423 does not contain precious metals.
This information was last updated on Aug 01, 2025.