National Stock Number
4820-01-204-9477
National Stock Number (NSN) 4820-01-204-9477, or NIIN 012049477, (valve,butterfly) was assigned April 2, 1985 in the Federal Logistics Information System (FLIS). NIIN 012049477 was cancelled on August 2, 1997, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820012245349. This NSN replaces 1 stock number, 4820011695826.
There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for 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) 05489. [A VALVE THAT CONTROLS FLOW BY A CIRCULAR DISK, OR A PAIR OF SEMICIRCULAR DISKS, ATTACHED TO A COMMON SPINDLE OR LEVER TURNING ON A DIAMETRAL AXIS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820012049477 does not contain precious metals.
This information was last updated on Jul 01, 2025.