National Stock Number
4730-00-278-3989
National Stock Number (NSN) 4730-00-278-3989, or NIIN 002783989, (tee,pipe) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 4730008118854, 4730004974517.
There are 7 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 11 suppliers. Today, 10 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 Mar 22, 2016. There have been 2 contracts issued for this part number, with 4 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPM7MX12D0030, SPM7MX12D0030, SPM7MX12D0030, SPM7MX12D0030, SPM7MX12D0030. The total value of the awarded contracts has been US$ 10,843.37.
This NSN is very common among different weapons systems, belonging to 51 different platforms.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 2,321. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 03805. [A FITTING HAVING THREE CONNECTIONS WITH THE BRANCH CONNECTION FIXED AT 90 DEGREES (1.5705 RADIANS) TO THE RUN. THE CONNECTIONS HAVE STANDARD PIPE THREADS OR 1S UNTHREADED AND DESIGNED TO ACCOMMODATE A PIPE. IT MAY HAVE SIDE INLET(S). IT IS USED AS A JUNCTION AT THE INTERSECTION OF PIPE OR PIPE FITTINGS.]. 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 4730002783989 contains an unknown precious metal.
This NSN is associated to Schedule B 7412200000: copper alloy tube or pipe fittings. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332919: other metal valve and pipe fitting manufacturing.
This information was last updated on Jun 01, 2025.