National Stock Number (NSN) 4820-00-540-2381, or NIIN 005402381, (valve,foot) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4820010331849.
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 10 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 42 contracts issued for this part number, with 51 awards given. There is heavy competition for this NSN. The US Government has awarded contracts to 11 different suppliers. The last contract numbers awarded were: SPE7MC25P1804, SPE7MC24P1185, SPE7M423P2465, SPE7MC23V0433, SPE7M122F302T. The total value of the awarded contracts has been US$ 923,323.69.
This NSN is very common among different weapons systems, belonging to 42 different platforms.
There has been a moderate 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 24, 2015, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 13762. [A VALVE USED ON THE FREE END OF A SUCTION LINE PERMITTING FLOW IN ONLY ONE DIRECTION. IT IS ALWAYS EQUIPPED WITH A STRAINER AT THE INLET END. SEE ALSO VALVE, CHECK.]. 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 4820005402381 contains an unknown precious metal.
This NSN is associated to Schedule B 8481809050: other taps, cocks, valves, etc., 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 Aug 01, 2025.