National Stock Number (NSN) 4820-01-505-5326, or NIIN 015055326, (cartridge,stop-check valve) was assigned March 10, 2003 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. 2 of those 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, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 8 contracts issued for this part number, with 8 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE7MC24V5641, SPE7MC24V5641, SPE7MC23V8732, SPE7M821V2664, SPE7M820V1790. The total value of the awarded contracts has been US$ 30,141.80.
This NSN is somewhat common among different platforms, belonging to 3 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 Dec 12, 2013, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 50959. [A COMPLETE, INTERCHANGEABLE VALVE INCLUDING A REMOVABLE SEAT BUT EXCLUDING THE BODY. THE SPRING-LOADED DESIGN ALLOWS FLOW IN ONE DIRECTION ONLY WHEN THE VALVE IS OPEN AND STOPS ALL FLOW WHEN THE VALVE IS CLOSED. 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 4820015055326 does not contain precious metals.
This NSN is associated to Schedule B 8481909090: parts of taps, cocks, valves and similar appliances, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332911: industrial valve manufacturing.
This information was last updated on May 01, 2025.