Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KS6020-12 found under Gear Worm by Bae Systems Information And Electronic Systems Integration I Dba Es Marine Syste. The National Stock Number assigned to this part is 3020011575429, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KS6020-12.