National Stock Number
3439-01-731-9397
National Stock Number (NSN) 3439-01-731-9397, or NIIN 017319397, (ring,welding,pipe joint) was assigned July 10, 2025 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
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.
This NSN is assigned to Item Name Code (INC) 13125. [A PRESSED METAL ITEM, CIRCULAR IN SHAPE, DESIGNED TO FACILITATE AND EXPEDITE THE WELDING OF JOINTS IN STEEL PIPE AND TUBING. IT IS SPLIT LONGITUDINALLY AND FITS INSIDE THE TWO PIECES TO BE WELDED. A CENTRAL RIDGE ASSURES ALIGNMENT AND SPACING. WHEN WELDING IS COMPLETED, THE RING FORMS AN INTEGRAL PART OF THE JOINT.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 3439017319397 does not contain precious metals.
This NSN is associated to Schedule B 8515902000: welding machine parts and parts of apparatus. The Schedule B End Use is listed as metalworking machine tools. NAICS classification category 333992: welding and soldering equipment manufacturing.
This information was last updated on Aug 01, 2025.