National Stock Number (NSN) 4710-00-278-3291, or NIIN 002783291, (tube,bent,metallic) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 7 stock numbers. Five of the National Stock Numbers that it replaces are: 4710003427165, 4710009340329, 4710004913310, 4710008139869, 4710002039351.
There are 13 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 19 contracts issued for this part number, with 30 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE7M125P5201, SPE7M125P5201, SPE7M125P5201, SPE7M125P5201, SPE7M125P5201. The total value of the awarded contracts has been US$ 547,407.27.
This NSN is very common among different weapons systems, belonging to 61 different platforms.
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 Dec 01, 2016, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 32507. [A BENT HOLLOW ITEM, WELDED OR SEAMLESS. IT HAS A ROUND, SQUARE OR ANY OTHER CROSS SECTION, WITH A CONTINUOUS PERIPHERY. IT IS PRIMARILY DESIGNED TO CONVEY FLUIDS, GASES AND/OR SEMISOLIDS. EXCLUDES:ITEMS OF CIRCULAR CROSS SECTION WHICH CONFORM IN DIMENSIONAL CHARACTERISTICS TO PIPE, METALLIC; ELBOW, PIPE; ELBOW, TUBE; BEND, ELECTRICAL CONDUIT; BEND, PIPE, RETURN; AND BEND, TUBE, RETURN. FOR ITEMS WITH END FITTINGS ON ONE OR BOTH ENDS, SEE TUBE ASSEMBLY, METAL.]. 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 4710002783291 does not contain precious metals.
This information was last updated on Aug 01, 2025.