National Stock Number
4820-01-493-1586
National Stock Number (NSN) 4820-01-493-1586, or NIIN 014931586, (cartridge,stop-check valve) was assigned December 18, 2001 in the Federal Logistics Information System (FLIS). NIIN 014931586 was cancelled on May 2, 2004, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5340014934317. 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) 50959. [A COMPLETE, INTERCHANGEABLE VALVE INCLUDING A REMOVABLE SEAT BUT EXCLUDING THE BODY. THE SPRING-LOADED DESIGN ALLOWS FLOW IN ONE DIRECTION ONLY WHEN THE VALVE IS OPEN AND STOPS ALL FLOW WHEN THE VALVE IS CLOSED. IT IS THE ENTIRE OPERATING PORTION OF A VALVE THAT MAY BE INSERTED INTO VARIOUS BODY STYLES. THE ITEM CANNOT OPERATE INDEPENDENTLY AND IS EASILY REPLACEABLE. EXCLUDES ITEMS FURNISHED WITH A BODY OR THOSE DESIGNED FOR MANIFOLD INSTALLATION.]. 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 4820014931586 does not contain precious metals.
This information was last updated on Jul 01, 2025.