National Stock Number
4820-01-181-8491
National Stock Number (NSN) 4820-01-181-8491, or NIIN 011818491, (valve,foot) was assigned June 16, 1984 in the Federal Logistics Information System (FLIS). NIIN 011818491 was cancelled on December 2, 2000, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820012238746. 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) 13762. [A VALVE USED ON THE FREE END OF A SUCTION LINE PERMITTING FLOW IN ONLY ONE DIRECTION. IT IS ALWAYS EQUIPPED WITH A STRAINER AT THE INLET END. SEE ALSO VALVE, CHECK.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820011818491 does not contain precious metals.
This information was last updated on Aug 01, 2025.