National Stock Number
4730-01-189-1721
National Stock Number (NSN) 4730-01-189-1721, or NIIN 011891721, (coupling,pipe) was assigned September 12, 1984 in the Federal Logistics Information System (FLIS). NIIN 011891721 was cancelled on January 2, 2007, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4730014867019. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 06076. [A STRAIGHT FITTING 12 INCHES (304 MM) LONG OR UNDER HAVING THE SAME OR DIFFERENT TYPE PIPE CONNECTION OF THE SAME SIZE ON BOTH ENDS. IT IS DESIGNED TO JOIN A PIPE OR PIPE FITTING TO ANOTHER PIPE OR PIPE FITTING. EXCLUDES:FITTINGS WITH THREADED EXTERNAL CONNECTIONS ON BOTH ENDS. SEE ALSO NIPPLE, PIPE.]. 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 4730011891721 does not contain precious metals.
This information was last updated on Aug 01, 2025.