National Stock Number (NSN) 3431-01-646-8991, or NIIN 016468991, (diffuser,gas shielded arc weldin) was assigned August 4, 2015 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 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 a year. There have been 10 contracts issued for this part number, with 9 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: SPE8E524V0129, SPE8E523V0587, SPE8E522P1231, SPE8E521V1256, SPE8E520V1486. The total value of the awarded contracts has been US$ 6,385.29.
This NSN is unique to one weapons system.
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 Aug 29, 2015, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 68488. [A TUBULAR ITEM WHICH IS MOUNTED IN A TORCH, WELDING, GAS SHIELDED ARC. IT IS DESIGNED FOR DIFFUSING GAS TO PROTECT THE WELD FROM AMBIENT AIR. EXCLUDES: NOZZLE, WELDING.]. 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 3431016468991 does not contain precious metals.
This NSN is associated to Schedule B 8468901000: parts of hand-directed or controlled machinery and apparatus for soldering, brazing, welding or surface tempering, other than those of heading 8515. The Schedule B End Use is listed as photo, service industry machinery. NAICS classification category 333992: welding and soldering equipment manufacturing.
This information was last updated on Aug 01, 2025.