National Stock Number
3020-00-231-8731
National Stock Number (NSN) 3020-00-231-8731, or NIIN 002318731, (link,roller chain) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 3750006798923, 3750006088481, 2520005759731.
There are 16 manufacturer part numbers associated with this NSN. 13 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 13 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is 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.
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 Jul 02, 2005, 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) 04488. [AN ASSEMBLED UNIT OF A CHAIN, ROLLER CONSISTING OF SIDE PLATES, ROLLER(S), BUSHING(S), OR PIN(S). IT MAY BE A SINGLE OR DOUBLE PITCH. LINKS CONTAINING BUSHINGS WITHOUT ROLLERS SHALL BE AS DESIGNATED BY THE AMERICAN NATIONAL STANDARDS INSTITUTE AS "ROLLER CHAIN." EXCLUDES:LINK, CHAIN (AS MODIFIED); AND PULLEY, SASH.]. 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 3020002318731 does not contain precious metals.
This NSN is associated to Schedule B 7315810000: stud link chain of iron or steel. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332618: other fabricated wire product manufacturing.
This information was last updated on Jul 01, 2025.