National Stock Number
4730-01-191-9570
National Stock Number (NSN) 4730-01-191-9570, or NIIN 011919570, (restrictor unit,fluid flow) was assigned October 14, 1984 in the Federal Logistics Information System (FLIS). NIIN 011919570 was cancelled on February 2, 1999, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 20933. [AN ASSEMBLY CONSISTING OF AN ORIFICE IN A FIXED PLATE, DISK, OR TUBE WITH SCREENS OR FILTERS ON ONE OR BOTH SIDES, DEPENDING ON THE DIRECTION OF FILTERED FLOW. SEE RESTRICTOR, FLUID FLOW.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730011919570 does not contain precious metals.
This information was last updated on Jul 01, 2025.