Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1103 1680 01 found under Stud Lock Pin Fastener by Mct Industries Inc. The National Stock Number assigned to this part is 5325016673343, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1103 1680 01.