Gears, Pulleys, Sprockets, and Transmission Chain
FSC 3020: Gears, Pulleys, Sprockets, and Transmission Chain
Federal Supply Class (FSC) 3020 covers gears, pulleys, sprockets, and transmission chain. These NSN items are core power transmission elements used throughout vehicles and machinery.
These parts transmit rotational motion and power between shafts at controlled speeds and ratios. They are fundamental to nearly every mechanical drive.
Common items include spur, helical, and bevel gears, pulleys, sprockets, and roller chain. Parts are made from hardened steel, alloy steel, and cast iron for wear resistance.