National Stock Number
4820-00-404-3490
National Stock Number (NSN) 4820-00-404-3490, or NIIN 004043490, (valve,flow control) was assigned August 1, 1969 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number 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.
This NSN is unique to one weapons system.
There has been very little 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 Oct 16, 2014, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 45506. [AN INLINE OR CARTRIDGE TYPE ITEM DESIGNED TO CONTROL THE FLOW OF FLUIDS WITHIN A CLOSED SYSTEM. EXCLUDES ITEMS ACTUATED BY A PREDETERMINED PRESSURE AND/OR TEMPERATURE, ITEMS DESIGNED FOR USE WITH BREATHING GASSES, OR THOSE DESIGNED TO VENT OR CALIBRATE FLUIDS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820004043490 contains an unknown precious metal.
This NSN is associated to Schedule B 8481809015: regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level. 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.