National Stock Number (NSN) 4730-00-370-4111, or NIIN 003704111, (flange,pipe) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of May 24, 2018. There have been 2 contracts issued for this part number, with 4 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE7M118FAJVW, SPM7LX09D9008, SPM7LX09D9008, SPM7LX09D9008. The total value of the awarded contracts has been US$ 139.55.
This NSN is somewhat common among different platforms, belonging to 8 different weapons systems.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 810. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 19, 2012, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 03798. [AN ITEM SOLID OR SPLIT INTO HALVES, HAVING A THREADED OR UNTHREADED HOLE FOR THE PURPOSE OF CONNECTING OR RETAINING A PIPE, TUBE, OR HOSE FITTING. THE FACE OF THE FLANGE MAY BE SMOOTH, GROOVED, OR SERRATED AND MAY BE DRILLED FOR CONNECTING BOLTS OR STUDS. IF THE ITEM IS UNTHREADED, THE PIPE OR TUBE MAY BE RETAINED BY WELDING, BRAZING, COMPRESSION, OR THE LIKE. EXCLUDES:FLANGE, PIPE, BLIND; FERRULE, GROOVED CLAMP COUPLING; AND ADAPTER (AS MODIFIED).]. 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 4730003704111 contains an unknown precious metal.
This NSN is associated to Schedule B 7307912000: flanges of iron or nonalloy steel. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Aug 01, 2025.