National Stock Number (NSN) 4710-01-258-9521, or NIIN 012589521, (tube and fittings,metallic) was assigned July 10, 1987 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 4710012326006, 4710012559143.
There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 somewhat common among different platforms, belonging to 3 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2005, this NSN's acquisition method was noted as: Suitable for competitive acquisition for the first time. (Potential sources shall include dealers/distributors.) The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 36987. [AN ITEM CONSISTING OF METAL TUBE, STRAIGHT OR PREBENT, WITH PERMANENTLY ATTACHED FITTINGS (BRAZED OR WELDED) ON ONE OR BOTH ENDS. IT IS PRIMARILY DESIGNED TO CONVEY FLUIDS, GASES, AND/OR SEMISOLIDS. FOR ITEMS WITH DETACHABLE END FITTINGS, 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 4710012589521 does not contain precious metals.
This NSN is associated to Schedule B 7306501000: other tubes, pipes etc nesoi, wld, circ crs sec, of alloy steel other than stainless, having a wall thickness of less than 1.65 mm. The Schedule B End Use is listed as iron and steel products, other.
This information was last updated on Aug 01, 2025.