National Stock Number
4730-00-187-3592
National Stock Number (NSN) 4730-00-187-3592, or NIIN 001873592, (reducer,boss) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). NIIN 001873592 was cancelled on May 2, 2011, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4730006847160. This NSN replaces 1 stock number, 4730002874854.
There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 8 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Dec 11, 2010. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7M111V7272, SPM7M111V7272. The total value of the awarded contracts has been US$ 1,149.20.
This NSN is unique to one weapons system.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.
This NSN is assigned to Item Name Code (INC) 23541. [A STRAIGHT FITTING HAVING A BOSS CONNECTION OF A DIFFERENT SIZE AT EACH END. BOTH CONNECTIONS HAVE EXTERNAL OR INTERNAL MACHINE THREADS (STRAIGHT THREADS OTHER THAN PIPE OR HOSE SERIES) AND ARE DESIGNED TO FACILITATE A GASKET, PREFORMED PACKING, WASHER, OR THE LIKE TO FORM A SEAL AT THE BOSS. EXCLUDES:BUSHING (AS MODIFIED).]. 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 4730001873592 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.