National Stock Number
4730-12-123-1861
National Stock Number (NSN) 4730-12-123-1861, or NIIN 121231861, (reducer,tube) has an unknown assigned date. NIIN 121231861 was cancelled on January 2, 2013, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 13 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 7 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are 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) 08506. [A STRAIGHT TUBE FITTING HAVING A DIFFERENT SIZE CONNECTION ON EACH END. IT IS DESIGNED TO JOIN TWO TUBES OF DIFFERENT SIZES. EXCLUDES:BUSHING (AS MODIFIED).].
This information was last updated on Aug 15, 2025.