Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number YZ102403 found under Synchronizer Transmission by Funk Mfg Co. The National Stock Number assigned to this part is 2520016579501, 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 YZ102403.