National Stock Number
4730-01-667-3556
National Stock Number (NSN) 4730-01-667-3556, or NIIN 016673556, (coupling assembly,tube) was assigned October 12, 2017 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number 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.
There has been very little 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 Oct 13, 2017, this NSN's acquisition method was noted as: Not established. Not established.
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.]. 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 4730016673556 does not contain precious metals.
This information was last updated on Jul 01, 2025.