National Stock Number
4730-01-379-1972
National Stock Number (NSN) 4730-01-379-1972, or NIIN 013791972, (restrictor unit,fluid flow) was assigned August 29, 1993 in the Federal Logistics Information System (FLIS). NIIN 013791972 was cancelled on August 2, 1999, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4730010497159. 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 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 4730013791972 does not contain precious metals.
This information was last updated on Jul 01, 2025.