National Stock Number
3020-00-734-3037
National Stock Number (NSN) 3020-00-734-3037, or NIIN 007343037, (chain,roller) 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, 2520005620265.
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, 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. 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 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.]. 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 3020007343037 contains an unknown precious metal.
This NSN is associated to Schedule B 7315110000: roller chain of iron or steel. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 333613: mechanical power transmission equipment manufacturing.
This information was last updated on Aug 01, 2025.