National Stock Number
4820-12-345-1044
National Stock Number (NSN) 4820-12-345-1044, or NIIN 123451044, (valve,check) has an unknown assigned date. NIIN 123451044 was cancelled on October 2, 2007, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820123169554. 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 one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that 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) 05487. [A VALVE PERMITTING FLOW IN ONE DIRECTION ONLY. IT DOES NOT HAVE A STEM, EXCEPT WHEN EQUIPPED WITH A LEVER AND WEIGHT AND HAS NO PRESSURE ADJUSTMENT. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN.].
This information was last updated on Oct 17, 2025.