National Stock Number
4820-01-182-0777
National Stock Number (NSN) 4820-01-182-0777, or NIIN 011820777, (valve,check) was assigned June 19, 1984 in the Federal Logistics Information System (FLIS). NIIN 011820777 was cancelled on April 2, 1997, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820011259746. This NSN does not replace any other NSNs.
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) 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.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820011820777 does not contain precious metals.
This information was last updated on Apr 01, 2025.