National Stock Number
4730-00-931-1499
National Stock Number (NSN) 4730-00-931-1499, or NIIN 009311499, (coupling assembly,tube,flexible) was assigned September 12, 1966 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 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 Mar 31, 2020. There have been 6 contracts issued for this part number, with 6 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE7M320P3339, SPE7M319P5650, SPE7M319P3074, SPE7M319P3033, SPE7M319V1610. The total value of the awarded contracts has been US$ 18,019.50.
This NSN is somewhat common among different platforms, belonging to 4 different weapons systems.
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 Apr 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 32834. [A MULTIPIECE GASKET SEALED ITEM SPECIFICALLY DESIGNED FOR JOINING PLAIN END FERRULED TUBING OR BEADED END TUBING THAT WILL ACCOMMODATE ANGULAR MISALIGNMENT, AXIAL MOTION AND PERMITS EXPANSION AND CONTRACTION OF THE TUBING. IT MAY BE DISCONNECTED FOR SEAL REPLACEMENT WITHOUT DISTURBING THE REST OF THE LINE. THE SEALS ARE NOT NORMALLY FURNISHED WITH THE ITEM. FOR RIGID TYPE ITEMS SEE COUPLING, TUBE; AND UNION, TUBE.]. 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 4730009311499 contains an unknown precious metal.
This NSN is associated to Schedule B 7609000000: aluminum tube or pipe fittings (couplings,elbows sleeves). The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Aug 01, 2025.