National Stock Number
4730-01-325-3821
National Stock Number (NSN) 4730-01-325-3821, or NIIN 013253821, (coupling assembly,tube) was assigned September 4, 1990 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
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) 39980. [AN ITEM CONSISTING OF TWO OR MORE TUBE FITTINGS WHICH ARE COMPLETE ITEMS AND MAY BE ASSEMBLED IN A COMBINATION FORMING A SINGLE ITEM OF SUPPLY DESIGNED TO CONNECT TUBE LINES. EXCLUDES:COUPLING ASSEMBLY, SELF-SEALING AND COUPLING ASSEMBLY, QUICK DISCONNECT.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730013253821 does not contain precious metals.
This information was last updated on Aug 01, 2025.