National Stock Number
5365-01-278-1820
National Stock Number (NSN) 5365-01-278-1820, or NIIN 012781820, (ring,externally threaded) was assigned May 3, 1988 in the Federal Logistics Information System (FLIS). NIIN 012781820 was cancelled on March 21, 2002, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 3 suppliers. Today, 3 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) 08417. [A CYLINDRICALLY SHAPED ITEM WITH A CONCENTRIC BORE AND A PERIPHERAL THREAD OVER ITS ENTIRE LENGTH OR OVER A PORTION THEREOF. ONE FACE IS DRILLED, SLOTTED, KNURLED, OR HAS PROJECTING LUGS FOR INSTALLATION AND/OR REMOVAL PURPOSES. EXCLUDES:RETAINER, OPTICAL ELEMENT.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5365012781820 does not contain precious metals.
This information was last updated on Aug 01, 2025.