National Stock Number
4730-01-197-7778
National Stock Number (NSN) 4730-01-197-7778, or NIIN 011977778, (restrictor,fluid flow) was assigned December 27, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4730011948179.
There are 10 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 6 contracts issued for this part number, with 6 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE7M325V2426, SPE7M321V4753, SPE7M020V3064, SPE7M319V5182, SPE7M016V0909. The total value of the awarded contracts has been US$ 11,434.10.
There has been a small 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 10, 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. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 18263. [AN ITEM OF SOLID ONE-PIECE CONSTRUCTION, DESIGNED TO RESTRICT THE FLOW OF A FLUID THROUGH IT. IT HAS AN ORIFICE OF A SMALLER SIZE THAN THE DIAMETER OF FLOW INTO IT. EXCLUDES:ITEMS SUCH AS VALVE (1), (AS MODIFIED); AND OTHERS WITH AN ADJUSTABLE ORIFICE. EXCLUDES:PIPE, TUBE, OR HOSE FITTINGS WITH RESTRICTED PASSAGES AND ITEMS DESIGNED TO TEST FLUID FLOW. FOR ITEMS CONTAINING SCREENS OR FILTERS, SEE RESTRICTOR UNIT, 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 4730011977778 does not contain precious metals.
This information was last updated on Jul 01, 2025.