National Stock Number
3456-00-821-6972
National Stock Number (NSN) 3456-00-821-6972, or NIIN 008216972, (cage assembly,roller tube expand) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 8 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 Jul 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) 20965. [A COMPONENT OF A ROLLER TYPE EXPANDER, TUBE WHICH CONSISTS OF CAGE AND THE REQUIRED NUMBER AND TYPES OF ROLLS.]. 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 3456008216972 contains an unknown precious metal.
This NSN is associated to Schedule B 8466100110: tool holders for forming-type or cutting type dies. The Schedule B End Use is listed as metalworking machine tools. NAICS classification category 333515: cutting tool and machine tool accessory manufacturing.
This information was last updated on Aug 01, 2025.