National Stock Number
4730-00-189-2638
National Stock Number (NSN) 4730-00-189-2638, or NIIN 001892638, (union,pipe) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 4730001892650, 4730002785935.
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, with the most recent procurement date of Aug 01, 2018. There have been 7 contracts issued for this part number, with 7 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE7M318V5262, SPE7M114VE688, SPE7M114VA433, SPM7M312M0794, SPM7M311V1786. The total value of the awarded contracts has been US$ 11,243.17.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 03785. [A STRAIGHT PIPE FITTING DESIGNED TO JOIN TWO LENGTHS OF PIPE OR PIPE FITTINGS IN SUCH A MANNER THAT THEY MAY BE DISCONNECTED WITHOUT DISTURBING THE REST OF THE PIPE LINE. THE END CONNECTIONS HAVE PIPE THREADS OR ARE UNTHREADED AND DESIGNED TO ACCOMMODATE A PIPE.]. 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 4730001892638 contains an unknown precious metal.
This NSN is associated to Schedule B 7307199030: unions, pipe, of iron or steel, cast. The Schedule B End Use is listed as iron and steel products, other. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Jul 01, 2025.