National Stock Number
4730-01-323-6144
National Stock Number (NSN) 4730-01-323-6144, or NIIN 013236144, (locknut,tube fitting) was assigned August 1, 1990 in the Federal Logistics Information System (FLIS). NIIN 013236144 was cancelled on December 2, 2004, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5355001566559. 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) 17645. [AN ITEM WITH INTERNAL MACHINE THREADS DESIGNED TO FIT THE EXTERNAL MACHINE THREADS OF A TUBE FITTING. IT HAS FLAT FACES, ONE OF WHICH HAS A COUNTERBORED RECESS TO ACCOMMODATE PACKING, PACKING OR SEALING RING(S), GASKET(S), AND THE LIKE. THE ITEM, WHEN INSTALLED, PROVIDES A METHOD OF LOCKING AND SEALING THE CONNECTION. SEE ALSO LOCKNUT, PIPE; NUT (1), TUBE COUPLING AND NUT (1), PLAIN, HEXAGON.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4730013236144 does not contain precious metals.
This information was last updated on Aug 01, 2025.