National Stock Number
4820-01-145-8557
National Stock Number (NSN) 4820-01-145-8557, or NIIN 011458557, (cartridge,shut-off valve) was assigned January 20, 1983 in the Federal Logistics Information System (FLIS). NIIN 011458557 was cancelled on October 2, 2018, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4820012201043. 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 one supplier. Today, one supplier is listed as an Active supplier 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, with the most recent procurement date of Sep 18, 2012. There have been 7 contracts issued for this part number, with 7 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7M512V6203, SPM7M512V5401, SPM7M512V3565, SPM7M012M4565, SPM7M512V3227. The total value of the awarded contracts has been US$ 21,369.65.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 22, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 50958. [A COMPLETE, INTERCHANGEABLE VALVE INCLUDING A REMOVABLE SEAT BUT EXCLUDING A BODY. IT IS DESIGNED TO CONTROL OR RESTRICT FLOW. 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 4820011458557 does not contain precious metals.
This information was last updated on Jul 01, 2025.