Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20-1123 found under Drive Collar Assembly by Transact Intl Inc. The National Stock Number assigned to this part is 3930012035493, and the Federal Supply Class is 3930 Warehouse Trucks And Tractors Self-Propelled. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20-1123.