National Stock Number
4820-01-228-1183
National Stock Number (NSN) 4820-01-228-1183, or NIIN 012281183, (disk,valve) was assigned March 14, 1986 in the Federal Logistics Information System (FLIS). NIIN 012281183 was cancelled on February 2, 2009, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820010305236. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. One of those 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, only one supplier is 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) 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.]. 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 4820012281183 does not contain precious metals.
This information was last updated on Aug 01, 2025.