National Stock Number
5365-00-166-6578
National Stock Number (NSN) 5365-00-166-6578, or NIIN 001666578, (plug,machine thread) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 001666578 was cancelled on August 24, 2011, 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 is only one manufacturer part number 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 03801. [AN ITEM WITH A CYLINDRICAL SHAPED BODY HAVING EXTERNAL THREADS OTHER THAN PIPE OR HOSE SERIES. IT IS DESINGED TO MATE INTO A PREFORMED THREADED COMPONENT FOR THE PURPOSE OF PLUGGING A HOLE DURING EQUIPMENT OPERATION. IT MAY HAVE A HEAD AND/OR INTERNAL DRIVE AND MAY CONTAIN A BLEEDER HOLE. SEE ALSO PLUG, PROTECTIVE, DUST AND MOISTURE SEAL AND CAP-PLUG, PROTECTIVE, DUST AND MOISTURE SEAL. EXCLUDES:PLUG, TUBE FITTING, THREADED.]. 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 5365001666578 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.