National Stock Number
4820-01-083-3272
National Stock Number (NSN) 4820-01-083-3272, or NIIN 010833272, (valve,check) was assigned September 21, 1979 in the Federal Logistics Information System (FLIS). NIIN 010833272 was cancelled on November 2, 2007, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820011475395. This NSN replaces 1 stock number, 4820011169206.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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 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 4820010833272 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.