National Stock Number
3020-00-331-7561
National Stock Number (NSN) 3020-00-331-7561, or NIIN 003317561, (chain,roller) was assigned January 1, 1961 in the Federal Logistics Information System (FLIS). NIIN 003317561 was cancelled on August 24, 2011, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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 assigned to Item Name Code (INC) 04457. [A FLEXIBLE MECHANICAL DEVICE CONSISTING OF ONE OR MORE ROWS OF LINKS USED FOR CONVEYING OR POWER TRANSMISSION. THE LINK SIDE PLATES ARE FLAT OR OFFSET AND ARE SPACED APART BY ROLLERS, BUSHINGS AND/OR PINS. THE CHAIN MATES WITH A SPROCKET WITH AN ARTICULATING ACTION. THE NON-ROTATING BUSHING TYPE CHAIN IS LIMITED TO THAT DESIGNATED BY THE AMERICAN NATIONAL STANDARDS INSTITUTE AS "ROLLER CHAIN". EXCLUDES:CHAIN, BLOCK.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3020003317561 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.