Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AA50019-545 found under Cover Terminal Boar by United Technologies Corporation. The National Stock Number assigned to this part is 5940012407072, and the Federal Supply Class is 5940 Lugs Terminals And Terminal Strips. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AA50019-545.