National Stock Number
4730-01-293-1403
National Stock Number (NSN) 4730-01-293-1403, or NIIN 012931403, (sleeve,flared,tube fitting) has an unknown assigned date. NIIN 012931403 was cancelled on August 2, 1992, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4730009876079. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to 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) 18027. [A FLANGED CYLINDRICAL METALLIC ITEM DESIGNED TO BE USED ON TUBING TO BACK UP THE FLARED END AND TO PROVIDE A BEARING SURFACE FOR THE COUPLING NUT, THEREBY REDUCING WEAR ON THE TUBING FLARE. THE INSIDE DIAMETER OF THE FLANGED END IS COUNTERSUNK TO FORM A SEAT FOR THE FLARE WHEN ASSEMBLED TO A MATING FITTING.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730012931403 does not contain precious metals.
This information was last updated on Aug 01, 2025.