Summary Information (click on this NSN number for detailed information: 3020-00-004-2267)
Roller Chain, also referenced with federal logistics item name code 4457:
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.