Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM80075-054 found under Gear Helical by Thales Optronics Limited. The National Stock Number assigned to this part is 3020013933017, 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 SM80075-054.