National Stock Number
9540-00-203-1891
National Stock Number (NSN) 9540-00-203-1891, or NIIN 002031891, (channel,structural) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 9540005287301.
There are 7 manufacturer part numbers associated with this NSN. 7 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are 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 Jan 18, 2018. There have been 4 contracts issued for this part number, with 4 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE8E918V0639, SPE8E917V1354, SPE8EG16V0887, SPE8EG16V0887, SPM8E507MQ203. The total value of the awarded contracts has been US$ 25,188.55.
This NSN is somewhat common among different platforms, belonging to 6 different weapons systems.
There has been very little 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 Mar 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 37019. [A STRUCTURAL SHAPE FABRICATED FROM A FERROUS OR NONFERROUS MATERIAL AND HAS A FLANGE EXTENDING USUALLY AT RIGHT ANGLES IN THE SAME DIRECTION FROM EACH EDGE OF A WEB AND/OR RESEMBLING THE LETTER U IN CROSS-SECTIONAL FORM.]. 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 9540002031891 does not contain precious metals.
This NSN is associated to Schedule B 7601209500: other unwrought aluminum alloys, nesoi. The Schedule B End Use is listed as aluminum and alumina.
This information was last updated on Aug 01, 2025.