Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1B3-Y48048 found under Gear Sector Bevel by Designatronics Inc. The National Stock Number assigned to this part is 3020014081525, 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 1B3-Y48048.