National Stock Number
4820-01-305-9785
National Stock Number (NSN) 4820-01-305-9785, or NIIN 013059785, (valve,check) was assigned August 15, 1989 in the Federal Logistics Information System (FLIS). NIIN 013059785 was cancelled on August 2, 2002, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4820012142309. 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers 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 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 4820013059785 does not contain precious metals.
This information was last updated on Apr 01, 2025.