National Stock Number
4730-01-649-4637
National Stock Number (NSN) 4730-01-649-4637, or NIIN 016494637, (union,pipe to tube) was assigned October 29, 2015 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 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 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 has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 03787. [A STRAIGHT FITTING CAPABLE OF BEING TAKEN APART AND REASSEMBLED. IT PERMITS DISCONNECTION AND CONNECTION OF PIPE OR PIPE FITTINGS TO TUBING OR TUBE FITTINGS WITHOUT DISTURBING THE END CONNECTIONS OR THE REST OF THE LINE. IT MUST HAVE A PIPE CONNECTION OF ANY TYPE OR SIZE ON ONE END AND A TUBE CONNECTION OF ANY TYPE OR SIZE ON THE OTHER END.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730016494637 does not contain precious metals.
This information was last updated on Jul 01, 2025.