Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 53Z545 found under Transmission Mechan by Ppm Cranes Inc. The National Stock Number assigned to this part is 2520012761218, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 53Z545.