National Stock Number (NSN) 4820-01-151-8974, or NIIN 011518974, (valve,calibrated flow) was assigned April 23, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4820011730754.
There are 3 manufacturer part numbers associated with this NSN. One 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 02, 2005, 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 Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 33212. [A VALVE SPECIFICALLY DESIGNED TO AUTOMATICALLY MAINTAIN A PREDETERMINED DISCHARGE FLOW RATE WHICH MAY BE ADJUSTABLE WITHIN A SPECIFIC RANGE. IT IS DESIGNED TO BE USED WITH VARIOUS FLUIDS AND MAY BE PRESET AND/OR ADJUSTABLE. IT MAY BE IN-LINE OR CARTRIDGE (MANIFOLD) DESIGN. EXCLUDES:VALVE, REGULATING, FEED WATER; VALVE, REGULATING, FLUID PRESSURE; VALVE, REGULATING, FUEL OIL; VALVE, REGULATING, OIL PRESSURE, AUTOMATIC PILOT; VAVLE, REGULATING, TEMPERATURE; VALVE, ANGLE; AND VALVE, GLOBE.]. 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 4820011518974 does not contain precious metals.
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 May 01, 2025.